8b0f9d248e67199bb7f1a778a03e4caee7d267e61d8a7d70fa1c1f6d7944e96a

Analysis

max time kernel
1798s
max time network
1790s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 02:21

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General

Target

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe
Size

268KB
MD5

12666b5054cc0cb62cf758736340c1bc
SHA1

0f9ec608413918adef409e8e97612b6e71fd1bc7
SHA256

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c
SHA512

df49dbcd1f2f0bf0d0129cb4e5dd343fc9fba1b46a7fc24db3e1fd560816ae86e79c360873ac06c62876051f622a9a54a327c3aa3019ecdad4a32f9dc9a68a77
SSDEEP

6144:1AZMCVtysJu4wCZt953XCWSntmb6IEACyoO+:u2wXCBWLEA5n+

Score

9^/10

defense_evasion discovery evasion execution impact persistence ransomware trojan

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Executes dropped EXE 1 IoCs

Processes:

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

pid	Process
1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkpjejof = "C:\\Windows\\atajikhv.exe"	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

description	pid	Process	procid_target
PID 464 set thread context of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 1840 set thread context of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description	ioc	Process
File opened for modification	C:\Windows\atajikhv.exe	explorer.exe
File created	C:\Windows\atajikhv.exe	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exeexplorer.exevssadmin.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

Processes:

vssadmin.exe

pid	Process
2796	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description	pid	Process
Token: SeBackupPrivilege	2724	vssvc.exe
Token: SeRestorePrivilege	2724	vssvc.exe
Token: SeAuditPrivilege	2724	vssvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exeexplorer.exe

description	pid	Process	procid_target
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 464 wrote to memory of 1840	464	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	30
PID 1840 wrote to memory of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31
PID 1840 wrote to memory of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31
PID 1840 wrote to memory of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31
PID 1840 wrote to memory of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31
PID 1840 wrote to memory of 264	1840	40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe	31
PID 264 wrote to memory of 2796	264	explorer.exe	32
PID 264 wrote to memory of 2796	264	explorer.exe	32
PID 264 wrote to memory of 2796	264	explorer.exe	32
PID 264 wrote to memory of 2796	264	explorer.exe	32

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe
"C:\Users\Admin\AppData\Local\Temp\40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:464
- C:\Users\Admin\AppData\Roaming\Microsoft\40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\system32\explorer.exe"
    3⤵
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:264
  - - C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      System Location Discovery: System Language Discovery
      Interacts with shadow copies
      PID:2796

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\ProgramData\alikunokipacabox\01000000

Filesize
4KB

MD5
bf3505b8584dd60dcf94bcffe60c45ff

SHA1
5d31c76620ddef9c42c3316db48037a2e75460d7

SHA256
aa241644ca8efc59e735f1d92655477503fbcbc8dd8870f011b1ff7c462a8a11

SHA512
c90afaf2c8130fda751699e41358293dadd1362df32f8338075e8feb87d6e1eeb183471b830c0ad3df9a414f6721e9b961ae54d216368103511883612cc91c59

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\40b3cb2a210fafdaabdebefe1430862bd1192a80fcde84f51ceb387136d1410c.exe

Filesize
4KB

MD5
e1190859ab4f21e58d1873afc1b3cff2

SHA1
50d4f9f444dba70b9918c4b812b5d9a098e0f867

SHA256
9b6f8344738cd1b954066a8099333dfa46c360700d8113312e8f1f6f22afcb73

SHA512
f3924e6b6002e9122c9465d23ff5a574268800078e9fe6011e0d62dca6113ffaf786fa46338a02288d8059e09ef0e79ac96d004dacabcb708291cf4376294a38

Download Submit
memory/264-35-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/264-43-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/264-45-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/264-36-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/464-1-0x0000000001DF0000-0x0000000001DF8000-memory.dmp

Filesize
32KB

Download
memory/464-2-0x000000001B0E0000-0x000000001B11E000-memory.dmp

Filesize
248KB

Download
memory/464-3-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

Filesize
9.6MB

Download
memory/464-46-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

Filesize
9.6MB

Download
memory/464-31-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

Filesize
9.6MB

Download
memory/464-0-0x000007FEF664E000-0x000007FEF664F000-memory.dmp

Filesize
4KB

Download
memory/1840-25-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-13-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-11-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-9-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-22-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-39-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1840-30-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-32-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1840-19-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download