1181cfd2b34e7be8a43ea7335ae541ee72c2fb50ab86c1ca0155864965766a55

General

Target

GJKF64.exe
Size

37KB
MD5

c9888d06d21e682ae62498e24880d139
SHA1

1dd9679e1792468116e7da109fdf3a89a4fa1bb2
SHA256

1181cfd2b34e7be8a43ea7335ae541ee72c2fb50ab86c1ca0155864965766a55
SHA512

205e2ed37e809bf7e7db818b5f55d99bfcaba55d3875301e5fb77285fb1e1c977b11ddd34358773145add1f405330f3b426b0c8bd0ab64600007e866c0ebc9ce
SSDEEP

768:MetU1hGx8VAXQul37B5t8Rsr55U9EuB6SLFo5:M+uM5iCc9Po4O5

Score

8^/10

evasion persistence

Malware Config

Signatures

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
4688	attrib.exe
4816	attrib.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	GJKF64.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	$77cc.exe

Executes dropped EXE 1 IoCs

pid	Process
2480	$77cc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\cc\\$77cc.exe\""	GJKF64.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
5028	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3676	timeout.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
4176	GJKF64.exe
2540	powershell.exe
2540	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4176	GJKF64.exe
Token: SeDebugPrivilege	2480	$77cc.exe
Token: SeDebugPrivilege	2540	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 4816	4176	GJKF64.exe	90
PID 4176 wrote to memory of 4816	4176	GJKF64.exe	90
PID 4176 wrote to memory of 4688	4176	GJKF64.exe	92
PID 4176 wrote to memory of 4688	4176	GJKF64.exe	92
PID 4176 wrote to memory of 4892	4176	GJKF64.exe	98
PID 4176 wrote to memory of 4892	4176	GJKF64.exe	98
PID 4892 wrote to memory of 3676	4892	cmd.exe	100
PID 4892 wrote to memory of 3676	4892	cmd.exe	100
PID 4892 wrote to memory of 2480	4892	cmd.exe	101
PID 4892 wrote to memory of 2480	4892	cmd.exe	101
PID 2480 wrote to memory of 1492	2480	$77cc.exe	102
PID 2480 wrote to memory of 1492	2480	$77cc.exe	102
PID 2480 wrote to memory of 5028	2480	$77cc.exe	104
PID 2480 wrote to memory of 5028	2480	$77cc.exe	104
PID 2480 wrote to memory of 2180	2480	$77cc.exe	106
PID 2480 wrote to memory of 2180	2480	$77cc.exe	106
PID 2480 wrote to memory of 2540	2480	$77cc.exe	108
PID 2480 wrote to memory of 2540	2480	$77cc.exe	108

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4816	attrib.exe
4688	attrib.exe

C:\Users\Admin\AppData\Local\Temp\GJKF64.exe
"C:\Users\Admin\AppData\Local\Temp\GJKF64.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\cc"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:4816
- C:\Windows\System32\attrib.exe
  "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\cc\$77cc.exe"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:4688
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B53.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3676
- - C:\Users\Admin\AppData\Roaming\cc\$77cc.exe
    "C:\Users\Admin\AppData\Roaming\cc\$77cc.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2480
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /query /TN $77cc.exe
      4⤵
      PID:1492
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /Create /SC ONCE /TN "$77cc.exe" /TR "C:\Users\Admin\AppData\Roaming\cc\$77cc.exe \"\$77cc.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
      4⤵
      Creates scheduled task(s)
      PID:5028
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /query /TN $77cc.exe
      4⤵
      PID:2180
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionExtension exe,bat,dll,ps1;exit
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

2

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\__PSScriptPolicyTest_2aatlm2d.ie4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8B53.tmp.bat

Filesize
152B

MD5
06423a0e4d81504c16c7b98760dbcbc0

SHA1
017e1984f4df6395180272b601891e4a06d6b84e

SHA256
c87675312fea4774c6ac631b4913ab0108bcb60c11293223716cd34f974fdf2c

SHA512
adcaa4fe617e520bf7ce930b81a9343e40e163dcb46e09b3d66efd886bfd120a2993e815002b2d46eb6db02f2ef7a8ccfc7b795bddad46df6992faea9b806793

Download Submit
C:\Users\Admin\AppData\Roaming\cc\$77cc.exe

Filesize
37KB

MD5
c9888d06d21e682ae62498e24880d139

SHA1
1dd9679e1792468116e7da109fdf3a89a4fa1bb2

SHA256
1181cfd2b34e7be8a43ea7335ae541ee72c2fb50ab86c1ca0155864965766a55

SHA512
205e2ed37e809bf7e7db818b5f55d99bfcaba55d3875301e5fb77285fb1e1c977b11ddd34358773145add1f405330f3b426b0c8bd0ab64600007e866c0ebc9ce

Download Submit
memory/2480-31-0x000000001C5E0000-0x000000001C5F0000-memory.dmp

Filesize
64KB

Download
memory/2480-29-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/2480-15-0x000000001C5E0000-0x000000001C5F0000-memory.dmp

Filesize
64KB

Download
memory/2480-14-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/2540-28-0x000001F4C2EC0000-0x000001F4C2EE2000-memory.dmp

Filesize
136KB

Download
memory/2540-16-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/2540-17-0x000001F4C2DB0000-0x000001F4C2DC0000-memory.dmp

Filesize
64KB

Download
memory/2540-18-0x000001F4C2DB0000-0x000001F4C2DC0000-memory.dmp

Filesize
64KB

Download
memory/2540-30-0x000001F4C2DB0000-0x000001F4C2DC0000-memory.dmp

Filesize
64KB

Download
memory/2540-32-0x000001F4C2DB0000-0x000001F4C2DC0000-memory.dmp

Filesize
64KB

Download
memory/2540-35-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/4176-9-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/4176-4-0x000000001C640000-0x000000001C650000-memory.dmp

Filesize
64KB

Download
memory/4176-3-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download
memory/4176-2-0x000000001C640000-0x000000001C650000-memory.dmp

Filesize
64KB

Download
memory/4176-0-0x0000000000BC0000-0x0000000000BCC000-memory.dmp

Filesize
48KB

Download
memory/4176-1-0x00007FFD790B0000-0x00007FFD79B71000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads