0a28fdab66bdddf46f7e90eb232a864a5cd2a66974bc2e6afbe9c68cdd08aa6c

General

Target

cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
Size

32KB
MD5

cf12dd691d0af6f43719312941c2966f
SHA1

ff79a5d17b82dfd9ba3bdfdba3dd354655a6cf66
SHA256

0a28fdab66bdddf46f7e90eb232a864a5cd2a66974bc2e6afbe9c68cdd08aa6c
SHA512

d07012248d966b471fe75387bc8069fbc6a526c744f37ccac43b7f4b6a54821c13a9994d9d44947b9bbd759198acf53163cedb3d19950324d028208227145d34
SSDEEP

768:xPQafSoHq6kXS9DS8VhUOkgjY7TD4fF0QQx:i2HqLPGhlk6YHDYF0B

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\Userinit.exe,C:\\Program Files\\Common Files\\System\\ado\\lsasss.exe,C:\\Program Files\\Common Files\\System\\msadc\\system32.exe"	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

UPX packed file 14 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1200-0-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-3-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-4-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-5-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-6-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-7-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-8-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-9-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-10-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-11-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-12-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-13-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-15-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1200-16-0x0000000000400000-0x0000000000419000-memory.dmp	upx

Network Share Discovery 1 TTPs
Attempt to gather information on host network.
discovery

Network Share Discovery
T1135

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\msadc\svchost.txt	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\svchost.txt	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

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

System Information Discovery
T1082

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	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 4164	1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe	90
PID 1200 wrote to memory of 4164	1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe	90
PID 1200 wrote to memory of 4164	1200	cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe	90
PID 4164 wrote to memory of 6056	4164	net.exe	93
PID 4164 wrote to memory of 6056	4164	net.exe	93
PID 4164 wrote to memory of 6056	4164	net.exe	93

C:\Users\Admin\AppData\Local\Temp\cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf12dd691d0af6f43719312941c2966f_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop sharedaccess
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4164
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess
    3⤵
    - System Location Discovery: System Language Discovery
    PID:6056

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=944,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=4128 /prefetch:8
1⤵
PID:4416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Network Share Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1200-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-3-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-4-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-5-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-6-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-7-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-8-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-9-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-10-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-11-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-12-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-13-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-15-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1200-16-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads