e26b2ffb2ee711fc7b04d62911580560794ee4fa9b7fcfade65ee6ff2eed0274

Resubmissions

21/06/2022, 11:45

220621-nwv1rsfeg2 10

01/06/2022, 14:14

220601-rjzpzacfhn 10

Analysis

max time kernel
90s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
01/06/2022, 14:14

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General

Target

z7w3x.exe
Size

621KB
MD5

753585e5e099b192cf8d7593dd5ef4bf
SHA1

68c5d6b38c9dd9e9e1e888386025352811147028
SHA256

e26b2ffb2ee711fc7b04d62911580560794ee4fa9b7fcfade65ee6ff2eed0274
SHA512

de96554eaa3971672f05228d26fc6cbe98c8a5b31d35b21c92256c4dfee24ec81a708d601e0be4b80a0a365f620e4b0582f6fcc950f29df2ed6233c8314494ce

Score

10^/10

discovery persistence ransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Horse.txt

Ransom Note

::: Hello my dear friend ::: Unfortunately for you, a major IT security weakness left you open to attack, your files have been encrypted If you want to restore them,write to our skype - HORSEMAGYAR DECRYPTION Also you can write ICQ live chat which works 24/7 @HORSEMAGYAR Install ICQ software on your PC https://icq.com/windows/ or on your mobile phone search in Appstore / Google market ICQ Write to our ICQ @HORSEMAGYAR https://icq.im/HORSEMAGYAR If we not reply in 6 hours you can write to our mail but use it only if previous methods not working - [email protected] Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * We are always ready to cooperate and find the best way to solve your problem. * The faster you write, the more favorable the conditions will be for you. * Our company values its reputation. We give all guarantees of your files decryption,such as test decryption some of them We respect your time and waiting for respond from your side tell your MachineID: SLZKSFVXWL and LaunchID: 191772fb98 Sensitive data on your system was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. - Manufacturing documents including: datagrams, schemas, drawings in solidworks format - And more...

Emails

[email protected]

URLs

https://icq.com/windows/

https://icq.im/HORSEMAGYAR

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\RevokeCopy.tiff	z7w3x.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	z7w3x.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
100	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSFEEditor = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\z7w3x.exe\" e"	z7w3x.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	z7w3x.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	\??\E:\$RECYCLE.BIN\S-1-5-21-1809750270-3141839489-3074374771-1000\desktop.ini	z7w3x.exe

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	z7w3x.exe
File opened (read-only)	\??\E:	z7w3x.exe

Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5036	timeout.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1316	powershell.exe
1316	powershell.exe
2348	z7w3x.exe
2348	z7w3x.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4052	wmic.exe
Token: SeSecurityPrivilege	4052	wmic.exe
Token: SeTakeOwnershipPrivilege	4052	wmic.exe
Token: SeLoadDriverPrivilege	4052	wmic.exe
Token: SeSystemProfilePrivilege	4052	wmic.exe
Token: SeSystemtimePrivilege	4052	wmic.exe
Token: SeProfSingleProcessPrivilege	4052	wmic.exe
Token: SeIncBasePriorityPrivilege	4052	wmic.exe
Token: SeCreatePagefilePrivilege	4052	wmic.exe
Token: SeBackupPrivilege	4052	wmic.exe
Token: SeRestorePrivilege	4052	wmic.exe
Token: SeShutdownPrivilege	4052	wmic.exe
Token: SeDebugPrivilege	4052	wmic.exe
Token: SeSystemEnvironmentPrivilege	4052	wmic.exe
Token: SeRemoteShutdownPrivilege	4052	wmic.exe
Token: SeUndockPrivilege	4052	wmic.exe
Token: SeManageVolumePrivilege	4052	wmic.exe
Token: 33	4052	wmic.exe
Token: 34	4052	wmic.exe
Token: 35	4052	wmic.exe
Token: 36	4052	wmic.exe
Token: SeIncreaseQuotaPrivilege	4052	wmic.exe
Token: SeSecurityPrivilege	4052	wmic.exe
Token: SeTakeOwnershipPrivilege	4052	wmic.exe
Token: SeLoadDriverPrivilege	4052	wmic.exe
Token: SeSystemProfilePrivilege	4052	wmic.exe
Token: SeSystemtimePrivilege	4052	wmic.exe
Token: SeProfSingleProcessPrivilege	4052	wmic.exe
Token: SeIncBasePriorityPrivilege	4052	wmic.exe
Token: SeCreatePagefilePrivilege	4052	wmic.exe
Token: SeBackupPrivilege	4052	wmic.exe
Token: SeRestorePrivilege	4052	wmic.exe
Token: SeShutdownPrivilege	4052	wmic.exe
Token: SeDebugPrivilege	4052	wmic.exe
Token: SeSystemEnvironmentPrivilege	4052	wmic.exe
Token: SeRemoteShutdownPrivilege	4052	wmic.exe
Token: SeUndockPrivilege	4052	wmic.exe
Token: SeManageVolumePrivilege	4052	wmic.exe
Token: 33	4052	wmic.exe
Token: 34	4052	wmic.exe
Token: 35	4052	wmic.exe
Token: 36	4052	wmic.exe
Token: SeBackupPrivilege	4696	vssvc.exe
Token: SeRestorePrivilege	4696	vssvc.exe
Token: SeAuditPrivilege	4696	vssvc.exe
Token: SeDebugPrivilege	1316	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 4552	2348	z7w3x.exe	81
PID 2348 wrote to memory of 4552	2348	z7w3x.exe	81
PID 2348 wrote to memory of 4552	2348	z7w3x.exe	81
PID 4552 wrote to memory of 4176	4552	net.exe	84
PID 4552 wrote to memory of 4176	4552	net.exe	84
PID 4552 wrote to memory of 4176	4552	net.exe	84
PID 2348 wrote to memory of 4516	2348	z7w3x.exe	85
PID 2348 wrote to memory of 4516	2348	z7w3x.exe	85
PID 2348 wrote to memory of 4516	2348	z7w3x.exe	85
PID 2348 wrote to memory of 4052	2348	z7w3x.exe	87
PID 2348 wrote to memory of 4052	2348	z7w3x.exe	87
PID 2348 wrote to memory of 4052	2348	z7w3x.exe	87
PID 2348 wrote to memory of 100	2348	z7w3x.exe	91
PID 2348 wrote to memory of 100	2348	z7w3x.exe	91
PID 2348 wrote to memory of 100	2348	z7w3x.exe	91
PID 2348 wrote to memory of 1316	2348	z7w3x.exe	93
PID 2348 wrote to memory of 1316	2348	z7w3x.exe	93
PID 2348 wrote to memory of 1316	2348	z7w3x.exe	93
PID 2348 wrote to memory of 3204	2348	z7w3x.exe	99
PID 2348 wrote to memory of 3204	2348	z7w3x.exe	99
PID 2348 wrote to memory of 3204	2348	z7w3x.exe	99
PID 3204 wrote to memory of 5036	3204	cmd.exe	102
PID 3204 wrote to memory of 5036	3204	cmd.exe	102
PID 3204 wrote to memory of 5036	3204	cmd.exe	102

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	z7w3x.exe

C:\Users\Admin\AppData\Local\Temp\z7w3x.exe
"C:\Users\Admin\AppData\Local\Temp\z7w3x.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Adds Run key to start application
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2348
- C:\Windows\SysWOW64\net.exe
  net stop VSS & sc config VSS start= disabled
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4552
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop VSS & sc config VSS start= disabled
    3⤵
    PID:4176
- C:\Windows\SysWOW64\sc.exe
  sc config VSS start= Demand & net start VSS
  2⤵
  PID:4516
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY delete /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4052
- C:\Windows\SysWOW64\icacls.exe
  icacls.exe "{A-Z}:" /grant {Username}:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -command "Get-WmiObject Win32_Shadowcopy | ForEach-Object {$_.Delete();}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout 1 && del "C:\Users\Admin\AppData\Local\Temp\z7w3x.exe" >> NUL
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3204
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:5036

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4696

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/1316-138-0x00000000060E0000-0x0000000006102000-memory.dmp

Filesize
136KB

Download
memory/1316-140-0x00000000061F0000-0x0000000006256000-memory.dmp

Filesize
408KB

Download
memory/1316-145-0x0000000007F10000-0x00000000084B4000-memory.dmp

Filesize
5.6MB

Download
memory/1316-144-0x0000000006E00000-0x0000000006E22000-memory.dmp

Filesize
136KB

Download
memory/1316-136-0x00000000032E0000-0x0000000003316000-memory.dmp

Filesize
216KB

Download
memory/1316-137-0x0000000005980000-0x0000000005FA8000-memory.dmp

Filesize
6.2MB

Download
memory/1316-143-0x0000000006DB0000-0x0000000006DCA000-memory.dmp

Filesize
104KB

Download
memory/1316-142-0x0000000006E30000-0x0000000006EC6000-memory.dmp

Filesize
600KB

Download
memory/1316-141-0x0000000006950000-0x000000000696E000-memory.dmp

Filesize
120KB

Download
memory/1316-139-0x0000000006110000-0x0000000006176000-memory.dmp

Filesize
408KB

Download