c93afe9a97b0745523fa62f731ead2bfd10e9f6176db58041a7790cb618e2ad8

General

Target

827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
Size

22KB
MD5

827637429ef879f33adff4e00e541de3
SHA1

c0b57d516c709b090dc017d06cf1c97370718667
SHA256

c93afe9a97b0745523fa62f731ead2bfd10e9f6176db58041a7790cb618e2ad8
SHA512

f2f69f96dacddd080f6425c910cc0b79ac2bef66d72c40e667786811e19e4514731bb49bbc86c9112414bc4d40893f66eaab123afecbc0246b426151b9ad14bc
SSDEEP

384:ciuFU5ua+NL7g0wMicZGOqhTXGqddm9eXDPMHk/IZmOWIuKe5DTbkM:cLeUv3sxm9MbMOIbWIuh9

Score

8^/10

defense_evasion discovery persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	wuauclt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\360safe = "C:\\Windows\\Fonts\\wuauclt.exe"	wuauclt.exe

Deletes itself 1 IoCs

pid	Process
2848	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1984	wuauclt.exe

Loads dropped DLL 2 IoCs

pid	Process
1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\wuauclt.exe	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
File opened for modification	C:\Windows\Fonts\wuauclt.exe	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
File created	C:\Windows\Fonts\gern.fon	wuauclt.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1652	taskkill.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "baidu.com"	wuauclt.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
1984	wuauclt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
Token: SeDebugPrivilege	1652	taskkill.exe
Token: SeDebugPrivilege	1984	wuauclt.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2080	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	31
PID 1268 wrote to memory of 2080	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	31
PID 1268 wrote to memory of 2080	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	31
PID 1268 wrote to memory of 2080	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	31
PID 2080 wrote to memory of 1652	2080	cmd.exe	33
PID 2080 wrote to memory of 1652	2080	cmd.exe	33
PID 2080 wrote to memory of 1652	2080	cmd.exe	33
PID 2080 wrote to memory of 1652	2080	cmd.exe	33
PID 1268 wrote to memory of 1984	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	35
PID 1268 wrote to memory of 1984	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	35
PID 1268 wrote to memory of 1984	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	35
PID 1268 wrote to memory of 1984	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	35
PID 1268 wrote to memory of 2848	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	36
PID 1268 wrote to memory of 2848	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	36
PID 1268 wrote to memory of 2848	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	36
PID 1268 wrote to memory of 2848	1268	827637429ef879f33adff4e00e541de3_JaffaCakes118.exe	36

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer	wuauclt.exe

C:\Users\Admin\AppData\Local\Temp\827637429ef879f33adff4e00e541de3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\827637429ef879f33adff4e00e541de3_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im wuauclt.exe /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im wuauclt.exe /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1652
- C:\Windows\Fonts\wuauclt.exe
  C:\Windows\Fonts\wuauclt.exe
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer start page
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - System policy modification
  PID:1984
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\827637429ef879f33adff4e00e541de3_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2848

Network

MITRE ATT&CK Enterprise v15

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

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

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

C:\Windows\Fonts\gern.fon

Filesize
1KB

MD5
0028e6bfc44a9f18f0f2edb021aec8c9

SHA1
0de4bbd1cabda21f5d84397173348e5f8dfc9d1a

SHA256
cd3bf6f90f9bcfe7e4fa2178650d72e7ee96c3405785815ce1b09ab797571ee9

SHA512
db55af29d27370fea9e0ab10a6bde43918e5412efe958dac5e598399452af2082969602451fd78a93eab3e9defc271c58d912a4516600ed956d34cacefe8b1b8

Download Submit
\Windows\Fonts\wuauclt.exe

Filesize
22KB

MD5
827637429ef879f33adff4e00e541de3

SHA1
c0b57d516c709b090dc017d06cf1c97370718667

SHA256
c93afe9a97b0745523fa62f731ead2bfd10e9f6176db58041a7790cb618e2ad8

SHA512
f2f69f96dacddd080f6425c910cc0b79ac2bef66d72c40e667786811e19e4514731bb49bbc86c9112414bc4d40893f66eaab123afecbc0246b426151b9ad14bc

Download Submit
memory/1268-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1268-8-0x00000000003E0000-0x00000000003ED000-memory.dmp

Filesize
52KB

Download
memory/1984-10-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1984-16-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads