5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9

Analysis

max time kernel
192s
max time network
222s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 08:43

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General

Target

5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe
Size

220KB
MD5

941fb1cd3fdab89abc35f0a21abd2f45
SHA1

349c15855c91c341db0bc01cc328a17a3554cbc4
SHA256

5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9
SHA512

14cf15e0f84f821adfd4dfe3037421291f296e9613db3f77405053e2b4a9a2e18625c2425a56af02bb479ff8e5c6b2eb45808d0054b5dbefd3d9cba213c0ade5
SSDEEP

3072:sTVZEA0R5UeyVSzeIw6upojbcbf0L1siwNGRRH9fZvl2hZm6nE:sxWA0EeKvpdbf0L1si9H9fZvj6E

Score

9^/10

evasion persistence ransomware trojan

Malware Config

Signatures

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

File Deletion
T1107

Inhibit System Recovery
T1490

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ygamiqog = "C:\\Windows\\iqokolkq.exe"	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 948 set thread context of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28

Drops file in Windows directory 2 IoCs

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

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

pid	Process
1188	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	620	vssvc.exe
Token: SeRestorePrivilege	620	vssvc.exe
Token: SeAuditPrivilege	620	vssvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28
PID 948 wrote to memory of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28
PID 948 wrote to memory of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28
PID 948 wrote to memory of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28
PID 948 wrote to memory of 1264	948	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	28
PID 1264 wrote to memory of 1188	1264	explorer.exe	29
PID 1264 wrote to memory of 1188	1264	explorer.exe	29
PID 1264 wrote to memory of 1188	1264	explorer.exe	29
PID 1264 wrote to memory of 1188	1264	explorer.exe	29

C:\Users\Admin\AppData\Local\Temp\5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe
"C:\Users\Admin\AppData\Local\Temp\5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:948
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\system32\explorer.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Windows\SysWOW64\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:1188

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact