878d00ccfc3f3d0112daa9fabac1c23aee3d2beb4e11fe3f0bafc57abd1d3fa3

General

Target

cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe
Size

241KB
MD5

cfb8b95785b67c9b54be21add1ae1e44
SHA1

8c8492f60a65688311408fa48a9b734ae0f5b123
SHA256

878d00ccfc3f3d0112daa9fabac1c23aee3d2beb4e11fe3f0bafc57abd1d3fa3
SHA512

34eabdff03ab725f2239c4ceb37c10bde9e3d2e077dc0834c36ad148e093a5cafdc9c0ee74149c4cb431b38e38d280c5fee7cb9ccae142cdbff01481bb42ba3c
SSDEEP

6144:G5LtD/gtVE7/nKiZ3SPWKd4eD8d8royMdG4vi7bHumr:6+tVEznKi0Wmed8royMy3um

Score

10^/10

discovery persistence

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\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\3a6abd20\\X"	Explorer.EXE

Deletes itself 1 IoCs

pid	Process
2724	explorer.exe

Executes dropped EXE 2 IoCs

pid	Process
2744	X
332	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe
2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\registry\machine\Software\Classes\Interface\{6309c5e8-cf71-f152-4438-0838fc78b4dd}	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6309c5e8-cf71-f152-4438-0838fc78b4dd}\u = "137"	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6309c5e8-cf71-f152-4438-0838fc78b4dd}\cid = "6937421364022365436"	explorer.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2744	X
2724	explorer.exe
2724	explorer.exe
2724	explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	explorer.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1184	Explorer.EXE
1184	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1184	Explorer.EXE
1184	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
332	csrss.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2724	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2744	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2744	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2744	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2744	2808	cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe	31
PID 2744 wrote to memory of 1184	2744	X	21
PID 2724 wrote to memory of 332	2724	explorer.exe	2

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:332

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies WinLogon for persistence
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1184
- C:\Users\Admin\AppData\Local\Temp\cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cfb8b95785b67c9b54be21add1ae1e44_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\explorer.exe
    000000CC*
    3⤵
    - Deletes itself
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2724
- - C:\Users\Admin\AppData\Local\3a6abd20\X
    193.105.154.210:80
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2744

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

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\3a6abd20\@

Filesize
2KB

MD5
b5801bae30dee6e2756cddb40bb47a38

SHA1
1c8707b26ea7c7b28af0a50e4f31de9b89200249

SHA256
9df86e2c8bf61ac92d6a0b49ff91ac23c68e5f9c77d7f84bb9cd37ab3ff04d97

SHA512
484dae4da55b974d0d665b64571db5352c468be3dc8bca1c791419dce53b8df622ddc8ec3833d8fec03119b6bb489d0538508ef7c6170851069090805e7e0d19

Download Submit
C:\Windows\system32\consrv.DLL

Filesize
31KB

MD5
dafc4a53954b76c5db1d857e955f3805

SHA1
a18fa0d38c6656b4398953e77e87eec3b0209ef3

SHA256
c6c82dde145a2dd9d70b1b539b17571befb663fc4a9ca834ff2a140cc4ebaa0b

SHA512
745e27a4f952e2492dbd12ced396be2c7dc78344ba415ad64b45920f95d7a282e30c7ad2da9266dc195c71e38019809e8183a705f9276c7d178de2f5ef34b633

Download Submit
\Users\Admin\AppData\Local\3a6abd20\X

Filesize
41KB

MD5
686b479b0ee164cf1744a8be359ebb7d

SHA1
8615e8f967276a85110b198d575982a958581a07

SHA256
fcfbb4c648649f4825b66504b261f912227ba32cbaabcadf4689020a83fb201b

SHA512
7ed8022e2b09f232150b77fc3a25269365b624f19f0b50c46a4fdf744eeb23294c09c051452c4c9dbb34a274f1a0bfc54b3ff1987ec16ae2e54848e22a97ed64

Download Submit
\systemroot\assembly\tmp\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}

Filesize
2KB

MD5
983775359f81326380c95141a46a4f44

SHA1
581b011c83246c5b665a4883079907bd7b46d524

SHA256
6ffef011701a408bf1d6925b60f8948148884d2dfbd422f6033e7c81e0b7e0cd

SHA512
cfa4b7262645f58a52d1c47c42a280408e683e69f9fd9b681d2a801fea34746cbf67730820934988b43cb5f458e0d3826352328b95a48421ccd62a10d21b6e64

Download Submit
memory/332-44-0x0000000000840000-0x000000000084C000-memory.dmp

Filesize
48KB

Download
memory/332-43-0x0000000000840000-0x000000000084C000-memory.dmp

Filesize
48KB

Download
memory/1184-28-0x0000000002210000-0x000000000221B000-memory.dmp

Filesize
44KB

Download
memory/1184-35-0x0000000002200000-0x0000000002208000-memory.dmp

Filesize
32KB

Download
memory/1184-46-0x0000000002990000-0x000000000299B000-memory.dmp

Filesize
44KB

Download
memory/1184-32-0x0000000002210000-0x000000000221B000-memory.dmp

Filesize
44KB

Download
memory/1184-45-0x0000000002200000-0x0000000002208000-memory.dmp

Filesize
32KB

Download
memory/1184-24-0x0000000002210000-0x000000000221B000-memory.dmp

Filesize
44KB

Download
memory/1184-36-0x0000000002990000-0x000000000299B000-memory.dmp

Filesize
44KB

Download
memory/2724-12-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/2724-17-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/2724-22-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download
memory/2724-3-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download
memory/2808-33-0x0000000000400000-0x00000000004499E8-memory.dmp

Filesize
294KB

Download
memory/2808-1-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2808-34-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2808-2-0x0000000000400000-0x00000000004499E8-memory.dmp

Filesize
294KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads