1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f

General

Target

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
Size

616KB
MD5

53c84ec33f905e5752991721cf27cdf4
SHA1

083799bd8d63162646c420f5d24a1bae7efbe546
SHA256

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f
SHA512

bafd06dd3791febf85c5c84f8afa83c3a3558e721cc16dfeee2ec732f7698c33df80002d6122a0547e18162f39606fabc6b143ac94c75dbb88e78d9b58cb239a

Score

10^/10

persistence ransomware suricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\Recovery+dtfkn.txt

Ransom Note

__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://p57gest54celltraf743knjf.mottesapo.com/884B91B1E3A2815F 2. http://k4restportgonst34d23r.oftpony.at/884B91B1E3A2815F 3. http://rr7mdgjbjhbefvkhbashrg.ginnypecht.com/884B91B1E3A2815F If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/884B91B1E3A2815F 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *** Your personal pages: http://p57gest54celltraf743knjf.mottesapo.com/884B91B1E3A2815F http://k4restportgonst34d23r.oftpony.at/884B91B1E3A2815F http://rr7mdgjbjhbefvkhbashrg.ginnypecht.com/884B91B1E3A2815F *** Your personal page Tor-Browser: fwgrhsao3aoml7ej.ONION/884B91B1E3A2815F *** Your personal identification ID: 884B91B1E3A2815F

URLs

http://p57gest54celltraf743knjf.mottesapo.com/884B91B1E3A2815F

http://k4restportgonst34d23r.oftpony.at/884B91B1E3A2815F

http://rr7mdgjbjhbefvkhbashrg.ginnypecht.com/884B91B1E3A2815F

http://fwgrhsao3aoml7ej.onion/884B91B1E3A2815F

http://fwgrhsao3aoml7ej.ONION/884B91B1E3A2815F

Signatures

suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Executes dropped EXE 3 IoCs

Processes:

emeikkvruavb.exeemeikkvruavb.exeyudow.exe

pid process

3372 emeikkvruavb.exe
1100 emeikkvruavb.exe
2308 yudow.exe

pid	process
3372	emeikkvruavb.exe
1100	emeikkvruavb.exe
2308	yudow.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exeyudow.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	yudow.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

emeikkvruavb.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	emeikkvruavb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12_23-dst = "C:\\Windows\\emeikkvruavb.exe"	emeikkvruavb.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exeemeikkvruavb.exe

description	pid	process	target process
PID 1952 set thread context of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 3372 set thread context of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe

Drops file in Program Files directory 64 IoCs

Processes:

emeikkvruavb.exe

description	ioc	process
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VGX\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\en-US\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sr-spl.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\lt-LT\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\TextConv\en-US\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\TextConv\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\default_apps\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\DESIGNER\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\HWRCustomization\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\chrome_200_percent.pak	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\it-IT\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ku.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\pl-PL\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Triedit\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\gl.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pl.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\es-MX\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ru-RU\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\da.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VC\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\sl-SI\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\th-TH\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\ja-JP\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nb.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ne.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\cs-CZ\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lt.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\he-IL\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ro-RO\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ar-SA\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ru-RU\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\fr-FR\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\el.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Triedit\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\de-DE\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\ja-JP\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lij.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\it-IT\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\th-TH\Recovery+dtfkn.txt	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\ado\de-DE\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\es-MX\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\sr-Latn-RS\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\it-IT\Recovery+dtfkn.png	emeikkvruavb.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\ja-JP\Recovery+dtfkn.html	emeikkvruavb.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ext.txt	emeikkvruavb.exe

Drops file in Windows directory 2 IoCs

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe

description	ioc	process
File created	C:\Windows\emeikkvruavb.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
File opened for modification	C:\Windows\emeikkvruavb.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

552 vssadmin.exe

pid	process
552	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

emeikkvruavb.exe

pid	process
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe
1100	emeikkvruavb.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exeemeikkvruavb.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
Token: SeDebugPrivilege	1100	emeikkvruavb.exe
Token: SeBackupPrivilege	4476	vssvc.exe
Token: SeRestorePrivilege	4476	vssvc.exe
Token: SeAuditPrivilege	4476	vssvc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exeemeikkvruavb.exe

pid process

1952 1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
3372 emeikkvruavb.exe

pid	process
1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
3372	emeikkvruavb.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exeemeikkvruavb.exeemeikkvruavb.exeyudow.exe

description	pid	process	target process
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 1952 wrote to memory of 2208	1952	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
PID 2208 wrote to memory of 3372	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	emeikkvruavb.exe
PID 2208 wrote to memory of 3372	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	emeikkvruavb.exe
PID 2208 wrote to memory of 3372	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	emeikkvruavb.exe
PID 2208 wrote to memory of 2880	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	cmd.exe
PID 2208 wrote to memory of 2880	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	cmd.exe
PID 2208 wrote to memory of 2880	2208	1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe	cmd.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 3372 wrote to memory of 1100	3372	emeikkvruavb.exe	emeikkvruavb.exe
PID 1100 wrote to memory of 2308	1100	emeikkvruavb.exe	yudow.exe
PID 1100 wrote to memory of 2308	1100	emeikkvruavb.exe	yudow.exe
PID 1100 wrote to memory of 2308	1100	emeikkvruavb.exe	yudow.exe
PID 2308 wrote to memory of 552	2308	yudow.exe	vssadmin.exe
PID 2308 wrote to memory of 552	2308	yudow.exe	vssadmin.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

emeikkvruavb.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	emeikkvruavb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	emeikkvruavb.exe

C:\Users\Admin\AppData\Local\Temp\1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
"C:\Users\Admin\AppData\Local\Temp\1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe
  "C:\Users\Admin\AppData\Local\Temp\1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f.exe"
  2⤵
  - Checks computer location settings
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\emeikkvruavb.exe
    C:\Windows\emeikkvruavb.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3372
  - - C:\Windows\emeikkvruavb.exe
      C:\Windows\emeikkvruavb.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Program Files directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:1100
    - - C:\Users\Admin\Documents\yudow.exe
        
        C:\Users\Admin\Documents\yudow.exe
        5⤵
        Executes dropped EXE
        Checks computer location settings
        Suspicious use of WriteProcessMemory
        
        PID:2308
      - C:\Windows\System32\vssadmin.exe
        
        "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
        6⤵
        Interacts with shadow copies
        
        PID:552
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\1D5669~1.EXE
    3⤵
    PID:2880

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\yudow.exe

Filesize
5KB

MD5
34d3f2e3fd92cd38a103d415dbb22936

SHA1
abdcf16a82cf8d3109ec39203181d839f2154a68

SHA256
5119839eaaf7dfc670c7d2c8a83e74f895e07fab5f22c379185769eed07ece25

SHA512
bc76ed0fe69ab38f66217f4b4aec79947e706136aecc5a42840ccd963799c8c175dc796d92be678b2b1e55d22c3a97fb4b9e00f6879958ae5a5bb2081ae7ad92

Download Submit
C:\Users\Admin\Documents\yudow.exe

Filesize
5KB

MD5
34d3f2e3fd92cd38a103d415dbb22936

SHA1
abdcf16a82cf8d3109ec39203181d839f2154a68

SHA256
5119839eaaf7dfc670c7d2c8a83e74f895e07fab5f22c379185769eed07ece25

SHA512
bc76ed0fe69ab38f66217f4b4aec79947e706136aecc5a42840ccd963799c8c175dc796d92be678b2b1e55d22c3a97fb4b9e00f6879958ae5a5bb2081ae7ad92

Download Submit
C:\Windows\emeikkvruavb.exe

Filesize
616KB

MD5
53c84ec33f905e5752991721cf27cdf4

SHA1
083799bd8d63162646c420f5d24a1bae7efbe546

SHA256
1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f

SHA512
bafd06dd3791febf85c5c84f8afa83c3a3558e721cc16dfeee2ec732f7698c33df80002d6122a0547e18162f39606fabc6b143ac94c75dbb88e78d9b58cb239a

Download Submit
C:\Windows\emeikkvruavb.exe

Filesize
616KB

MD5
53c84ec33f905e5752991721cf27cdf4

SHA1
083799bd8d63162646c420f5d24a1bae7efbe546

SHA256
1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f

SHA512
bafd06dd3791febf85c5c84f8afa83c3a3558e721cc16dfeee2ec732f7698c33df80002d6122a0547e18162f39606fabc6b143ac94c75dbb88e78d9b58cb239a

Download Submit
C:\Windows\emeikkvruavb.exe

Filesize
616KB

MD5
53c84ec33f905e5752991721cf27cdf4

SHA1
083799bd8d63162646c420f5d24a1bae7efbe546

SHA256
1d566994b2581a895e9680e7bbdc3908deebd409f265da389b996ffbed2c158f

SHA512
bafd06dd3791febf85c5c84f8afa83c3a3558e721cc16dfeee2ec732f7698c33df80002d6122a0547e18162f39606fabc6b143ac94c75dbb88e78d9b58cb239a

Download Submit
memory/552-151-0x0000000000000000-mapping.dmp

Download
memory/1100-152-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1100-147-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1100-146-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1100-145-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1100-142-0x0000000000000000-mapping.dmp

Download
memory/1952-134-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/1952-130-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/2208-135-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2208-141-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2208-136-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2208-133-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2208-132-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2208-131-0x0000000000000000-mapping.dmp

Download
memory/2308-148-0x0000000000000000-mapping.dmp

Download
memory/2880-140-0x0000000000000000-mapping.dmp

Download
memory/3372-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads