bf352825a70685039401abde5daf1712fd968d6eee233ea72393cbc6faffe5a2

General

Target
jaffacakes118_Trojan.Win32.Inject.vmtw.exe
Size 312KB
Sample261018-vsfv1asvav
SHA256 bf352825a70685039401abde5daf1712fd968d6eee233ea72393cbc6faffe5a2
MD5 5384f752e3a2b59fad9d0f143ce0215a
SHA1 949f1903642e72575e107ee492faba670c8e0006
SHA512 d4e5920255c2707cac12b83bac4ea7ad62a53dfd0efe578d1c196548e7bf2e1cad97607e70ce897d94069b1542f9308c8dbd03c8810fc66be7dc190426044d7c
SSDEEP 6144:iT+yNR5UrrQzuSMsoIE38RvvYLyH/rhcM9Ua8YLC39VQKgb5WrZa:nyNXU/QmIE38RvvNTKQ7C39yKgb5W
TLSH
T18C64DF82BBD9C15EE2B365380AA5C622A5527F687178CA6675C13D8F3537044CE22F3F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery persistence privilege_escalation ransomware

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4224	3912e0a733.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\USER\S-1-5-21-53044966-3830981193-2402648431-1000\Software\Microsoft\Windows\CurrentVersion\Run\335f3934 = "C:\\Users\\Admin\\AppData\\Roaming\\335f3934\\3912e0a733.exe"	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	jaffacakes118_Trojan.Win32.Inject.vmtw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3912e0a733.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4292	svchost.exe
4292	svchost.exe
4292	svchost.exe
4292	svchost.exe
4292	svchost.exe

Suspicious behavior: MapViewOfSection 1 TTPs 4 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
4364	jaffacakes118_Trojan.Win32.Inject.vmtw.exe
1912	explorer.exe
4224	3912e0a733.exe
6116	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 4 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 1912	4364	jaffacakes118_Trojan.Win32.Inject.vmtw.exe	89
PID 1912 wrote to memory of 3372	1912	explorer.exe	91
PID 4224 wrote to memory of 6116	4224	3912e0a733.exe	95
PID 6116 wrote to memory of 4292	6116	explorer.exe	97

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\jaffacakes118_Trojan.Win32.Inject.vmtw.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Inject.vmtw.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4364
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Windows\SysWOW64\svchost.exe
    -k netsvcs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3372

C:\Users\Admin\AppData\Roaming\335f3934\3912e0a733.exe
C:\Users\Admin\AppData\Roaming\335f3934\3912e0a733.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:6116
- - C:\Windows\SysWOW64\svchost.exe
    -k netsvcs
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4292

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

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Process Injection

Defense Evasion

Modify Registry

Process Injection

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

3912e0a733.exe

Path C:\Users\Admin\AppData\Roaming\335f3934\3912e0a733.exe
Size 312KB
SHA256 bf352825a70685039401abde5daf1712fd968d6eee233ea72393cbc6faffe5a2
MD5 5384f752e3a2b59fad9d0f143ce0215a
SHA1 949f1903642e72575e107ee492faba670c8e0006
SHA512 d4e5920255c2707cac12b83bac4ea7ad62a53dfd0efe578d1c196548e7bf2e1cad97607e70ce897d94069b1542f9308c8dbd03c8810fc66be7dc190426044d7c
SSDEEP 6144:iT+yNR5UrrQzuSMsoIE38RvvYLyH/rhcM9Ua8YLC39VQKgb5WrZa:nyNXU/QmIE38RvvNTKQ7C39yKgb5W
TLSH
T18C64DF82BBD9C15EE2B365380AA5C622A5527F687178CA6675C13D8F3537044CE22F3F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1912-2-0x0000000000160000-0x00000000001B1000-memory.dmp

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memory/1912-20-0x0000000000160000-0x00000000001B1000-memory.dmp

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memory/3372-4-0x0000000000A30000-0x0000000000A81000-memory.dmp

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memory/3372-21-0x0000000000A30000-0x0000000000A81000-memory.dmp

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memory/4224-7-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/4364-0-0x0000000000610000-0x0000000000611000-memory.dmp

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memory/4364-1-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/6116-8-0x0000000000320000-0x0000000000371000-memory.dmp

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memory/6116-22-0x0000000000320000-0x0000000000371000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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