4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf

General

Target

4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Size

55KB
MD5

6a91be324b928e26cae2c05d80faa460
SHA1

b87a153968c7c2491b7b0db4b507c50b7eef5e5e
SHA256

4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf
SHA512

10dda0d888ffec67f312fb1725b4c467cd6c4cb93d68107db8d4b0969f64c7b809356a30d7b0905b783c6ccc2c32e39e5ee56ca29343efa8174490f928048981
SSDEEP

768:Oe3PFaDVyOQgljLDKRJyM3BmsHzSB4us/wJJapg4RoSMZeUZB/QosWpH+DrCUpfi:V3cpyORJLuB4P4AJJv4Romu/9tpvUZS

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe

Loads dropped DLL 1 IoCs

pid	Process
4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\Desktop.ini	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\Desktop.ini	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
File created	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\target.lnk	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer	attrib.exe

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\DefaultIcon	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\DefaultIcon\ = "%1"	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open\command	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft\\%*ie%S3\\%2Internat Explorer\""	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.jgp\ = "jgpfile"	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.jgp	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 4532	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	81
PID 4304 wrote to memory of 4532	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	81
PID 4304 wrote to memory of 4532	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	81
PID 4304 wrote to memory of 4356	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	84
PID 4304 wrote to memory of 4356	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	84
PID 4304 wrote to memory of 4356	4304	4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe	84

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4532	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe
"C:\Users\Admin\AppData\Local\Temp\4aa1a9f773c90c1c380ed15e6f1b566287aac2f0751588a83661225c04fb24bf.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Checks computer location settings
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\ie13\Internat Explorer" +s
  2⤵
  - Drops file in Program Files directory
  - Views/modifies file attributes
  PID:4532
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp.bat" "
  2⤵
  PID:4356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsqB174.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp.bat

Filesize
250B

MD5
b1ac09a680297742057d6c566e626415

SHA1
d0b548fbbaab0ad94bad59df2331a5b8c32d92ec

SHA256
fd937cebf4b42a61b8e92a8260c3386778d04df910e11f543bc8e6e3a559dc61

SHA512
1bc97c32f0acc4bb2f86be4e13b1f241174371f91e16ed48e96bccdd325befa2398ec95f2513cb93e9402c8fafc64591f1d32a2f9978ca2e5a948134f6a76470

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads