7e7c00740baa58af22ef6f825d86344732464a4e325b5eb6f93f33898de079fa

Analysis

max time kernel
1198s
max time network
1190s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 02:36

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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

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

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\ypalujiw = "C:\\Windows\\ujelepix.exe"	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.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 2684 set thread context of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ujelepix.exe	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe
File created	C:\Windows\ujelepix.exe	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2832	2744	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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

pid	Process
1256	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3004	vssvc.exe
Token: SeRestorePrivilege	3004	vssvc.exe
Token: SeAuditPrivilege	3004	vssvc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31
PID 2684 wrote to memory of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31
PID 2684 wrote to memory of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31
PID 2684 wrote to memory of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31
PID 2684 wrote to memory of 2744	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	31
PID 2744 wrote to memory of 2832	2744	explorer.exe	32
PID 2744 wrote to memory of 2832	2744	explorer.exe	32
PID 2744 wrote to memory of 2832	2744	explorer.exe	32
PID 2744 wrote to memory of 2832	2744	explorer.exe	32
PID 2684 wrote to memory of 1256	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	33
PID 2684 wrote to memory of 1256	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	33
PID 2684 wrote to memory of 1256	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	33
PID 2684 wrote to memory of 1256	2684	5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe	33

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\5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe
"C:\Users\Admin\AppData\Local\Temp\5fc92308120aa10dc1062c4c319559ed0b1308befe117d5cafa283e245bea1e9.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\system32\explorer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 224
    3⤵
    - Program crash
    PID:2832
- C:\Windows\system32\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:1256

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3004

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

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Downloads

memory/2684-5-0x0000000000300000-0x000000000033B000-memory.dmp

Filesize
236KB

Download
memory/2684-10-0x0000000000300000-0x000000000033B000-memory.dmp

Filesize
236KB

Download
memory/2684-12-0x0000000000300000-0x000000000033B000-memory.dmp

Filesize
236KB

Download
memory/2684-13-0x0000000000300000-0x000000000033B000-memory.dmp

Filesize
236KB

Download
memory/2744-3-0x00000000000C0000-0x00000000000FB000-memory.dmp

Filesize
236KB

Download
memory/2744-1-0x00000000000C0000-0x00000000000FB000-memory.dmp

Filesize
236KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads