edce7ba96dd0f05c060f9085cf2735979a8d026fe0ceef484af9b36b356e72ce

General

Target

6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
Size

77KB
MD5

6f38ca18877da4532b7ad3b69349a1d4
SHA1

793fa2dc9a9d108f215be45d39533c95ff7661b6
SHA256

edce7ba96dd0f05c060f9085cf2735979a8d026fe0ceef484af9b36b356e72ce
SHA512

fb1d353672dd794bc4d30dd739a7bd56a871e56c30a1e4b458562acd0c8a5d0404b43b80a403fd76f4d9b639848a9c79c46f049c124314b678457021fc4f8491
SSDEEP

1536:/QwOc0tE2Lfa9j336w5PQeTOJXOi4WEWod+58WUOW+RGaCCUn4Qy:/FsxfyHdh7TOdOi4JWod+58UW+RGaC/E

Score

7^/10

discovery vmprotect

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\Control Panel\International\Geo\Nation	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3456	servar.exe

VMProtect packed file 2 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/3508-1-0x0000000000400000-0x0000000001A97000-memory.dmp	vmprotect
behavioral2/memory/3508-17-0x0000000000400000-0x0000000001A97000-memory.dmp	vmprotect

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\windows\servar.exe	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
File created	C:\windows\Comres.dll	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
412	3456	WerFault.exe	87

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	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	servar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\68A12DE4422589E97E1C6396FE17B5024FE0547A\Blob = 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	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\68A12DE4422589E97E1C6396FE17B5024FE0547A	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeBackupPrivilege	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
Token: SeRestorePrivilege	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 3456	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	87
PID 3508 wrote to memory of 3456	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	87
PID 3508 wrote to memory of 3456	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	87
PID 3508 wrote to memory of 1192	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	92
PID 3508 wrote to memory of 1192	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	92
PID 3508 wrote to memory of 1192	3508	6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6f38ca18877da4532b7ad3b69349a1d4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3508
- C:\windows\servar.exe
  "C:\windows\servar.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3456
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3456 -s 368
    3⤵
    - Program crash
    PID:412
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c afc9fe2f418b00a0.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3456 -ip 3456
1⤵
PID:4520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3596799a1543bc9f.aqq

Filesize
230B

MD5
ebe7a5976a5116504a7658df92bc3e85

SHA1
3dc9b4e647ab7739d1b5715ff8c7b04556d2a970

SHA256
09433041453057358f16a486db484f230ae4ff6909cd464d7d105647d289d87b

SHA512
2def3cf6f9ecaeb2ece1d2fa1d76ed8321db5c004c0a673c8563b845178c53eb42b3b8d6eac6a67f19ce4c87f104a4d993aa8b2d1eaa58e842e883b340f2aa73

Download Submit
C:\Users\Admin\AppData\Local\Temp\afc9fe2f418b00a0.bat

Filesize
2KB

MD5
718b255b19ac24971a1c5de3a3dce33c

SHA1
958044b7075e31c765fb9d85c5fdaf79bb4b7441

SHA256
0e8eb42a5a28c2892bf90c24027a31e3574e9ab2198228594deb1016d2e03678

SHA512
ef27781fd0b56b0fd75c1824b17cf6edd6713069dc88638bc0914e2267e883352d014bde9cf407e6ec32d76000d0a7e6fe11be02f31054449e74774785f5402d

Download Submit
C:\Windows\servar.exe

Filesize
22.4MB

MD5
f85bf6b63d6900fe957ec3de292963fe

SHA1
014504f74bfa4ceb0fee528e9f8ebfaef3ba5906

SHA256
8991cdf1bdfb0fd59441543f03b5e0d8f4951c9ea84737f18d0423a67a2d731d

SHA512
ca3ca75368b179e4b05356d2e355714e8e04ddd4110241d8f62f9b52a7972322a051b32d3cfa145af7debb49c1347c5ca8c33daeed46e362979e6ba3d2b5bc86

Download Submit
memory/3456-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3456-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-1-0x0000000000400000-0x0000000001A97000-memory.dmp

Filesize
22.6MB

Download
memory/3508-17-0x0000000000400000-0x0000000001A97000-memory.dmp

Filesize
22.6MB

Download

Analysis

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