9689baad163110e93eede93d7b299c9a7950753f480c128757c5c1a79476dd27

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 01:30

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General

Target
DHL_Versandschein_3325.exe
Size 528KB
Sample241009-bwvzjsshrd
SHA256 0e7f87b96bd272a6962a57ee055233b0d2eec355b249a31669bf18aac9958087
MD5 016f6d7b27131467004ebc31b50987f2
SHA1 b92eb7b8e3c26a7c9cd53758d2fc78baac203836
SHA512 972c02210b235c8ee94277d247c68d87dc61fc08147cfe0ef7733a89ae23438858e22ae1e47606a84d7803082dc616c6ef0895b79c569e0af396978b86694bd0
SSDEEP 12288:dSRqGQBjMZVqIt0gddYBtqzyM5Hr5bQYdFEaq2:zBjMZVx0YdYBtqzymHr55FE
MD5 SHA1 SHA512 SSDEEP

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\ijunacyx = "\"C:\\Windows\\ahukpgel.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	DHL_Versandschein_3325.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
22	ipecho.net

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1168 set thread context of 3908	1168	DHL_Versandschein_3325.exe	85

Drops file in Windows directory 2 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL_Versandschein_3325.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL_Versandschein_3325.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
4540	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4136	vssvc.exe
Token: SeRestorePrivilege	4136	vssvc.exe
Token: SeAuditPrivilege	4136	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1312 wrote to memory of 1168	1312	DHL_Versandschein_3325.exe	84
PID 1168 wrote to memory of 3908	1168	DHL_Versandschein_3325.exe	85
PID 1168 wrote to memory of 3908	1168	DHL_Versandschein_3325.exe	85
PID 1168 wrote to memory of 3908	1168	DHL_Versandschein_3325.exe	85
PID 1168 wrote to memory of 3908	1168	DHL_Versandschein_3325.exe	85
PID 3908 wrote to memory of 4540	3908	explorer.exe	88
PID 3908 wrote to memory of 4540	3908	explorer.exe	88

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\DHL_Versandschein_3325.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_Versandschein_3325.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Users\Admin\AppData\Local\Temp\DHL_Versandschein_3325.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL_Versandschein_3325.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1168
- - 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
    - Modifies Internet Explorer Phishing Filter
    - Suspicious use of WriteProcessMemory
    PID:3908
  - - C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:4540

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4136

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

01000000

Path C:\ProgramData\yfugewigitolyrah\01000000
Size 528KB
SHA256 c82e356a9cbbe63fd1c17b3d47da8737b29369282fe8396cb2335e77c963a0ac
MD5 a9df83dee8c7a6733acef401c6974c93
SHA1 21567f4a9ba88f158081dcc84ec1fe80b08399d1
SHA512 804cdeaf82042c9f21ec71e75c7f5acebcf823185369c7de8132bc20784975b527f750d489382f14a30bdb4767bae34487cc54d633ce60588649cde302814838
SSDEEP 12288:OVTSJMbW358RDqPZuWNahiKVFf5loZCZvIMfigbC9roQT5Pr/Pt9HXp:OkCaBxDNW115lcCbfigOLTP7Xp
MD5 SHA1 SHA512 SSDEEP

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memory/1168-1-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1168-2-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1168-4-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1168-5-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1168-13-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1312-0-0x0000000002400000-0x0000000002407000-memory.dmp

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memory/1312-3-0x0000000002400000-0x0000000002407000-memory.dmp

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memory/3908-10-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-9-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-14-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-7-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-19-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-25-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-26-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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memory/3908-32-0x0000000000C30000-0x0000000000CA6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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