77b7d2d16caeebb2aaf9b1aa7c2cf61f6c8ce9984824207358fddb98c2e28aa1

General

Target
4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
Size 225KB
Sample241015-v8625axflc
SHA256 77b7d2d16caeebb2aaf9b1aa7c2cf61f6c8ce9984824207358fddb98c2e28aa1
MD5 4926c13f48ba7d0f681975ebd499b63a
SHA1 a191787e60ae025f90f23c202dc0eaf34733525d
SHA512 e8af1aa9740c82214c8fb3948fff499fe10080be52682a0f43746fe6327be76c8954d9bb23f326410fbb06a40ea503988218fcdb0d36ae3947b116d9c0be2369
SSDEEP 6144:xLOZ3jRcopoSMjcjRcMM6wGjRcopoSMj:xLijcSMojDtjcSM
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

credential_access discovery persistence spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004

Executes dropped EXE 1 IoCs

pid	Process
3712	outlook.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\sys32.exe"	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\sys32.exe	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
File opened for modification	C:\Windows\outlook.cfg	outlook.exe
File created	C:\Windows\crc32.cfg	outlook.exe
File created	C:\Windows\sys32.exe	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
File created	C:\Windows\outlook.exe	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
File opened for modification	C:\Windows\outlook.exe	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3560	3712	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outlook.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 3712	5076	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe	84
PID 5076 wrote to memory of 3712	5076	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe	84
PID 5076 wrote to memory of 3712	5076	4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4926c13f48ba7d0f681975ebd499b63a_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Windows\outlook.exe
  C:\Windows\outlook.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 15936
    3⤵
    - Program crash
    PID:3560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3712 -ip 3712
1⤵
PID:3740

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

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

2

T1555

Credentials from Web Browsers

1

T1555.003

Windows Credential Manager

1

T1555.004

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

outlook.cfg

Path C:\Windows\outlook.cfg
Size 753B
SHA256 ef2e876a9c4fef6cd3b0ea10e7d54ae73db274d2d4b80763eca613cdbba5c4e4
MD5 cabde1bde53285491e141cdd0dc6c177
SHA1 05f4a1eccbed06f6bbbd5df1233dae0acec12c71
SHA512 5570c1f7b8f3e02c2a355a99ae0733c2ee865221d2dee3520db75b4ecdc35aeb89ea91f5530c4b4f363ab0132eec50c91b46d09213bd4a52bac1b6a0f65ebaf2
MD5 SHA1 SHA512

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outlook.cfg

Path C:\Windows\outlook.cfg
Size 1KB
SHA256 91ca2a88ebf38b57dd427ad6b23e9ab3be67e9426fa6fe9d89afb2dd311c5e14
MD5 2415f3c9dc60beb0c00538b1cd195b4c
SHA1 4857929774fc33daed5076815a053846382e8a37
SHA512 eb440b9e0bbaab043cff889c3607965f98dc93c341d3a2e4fe39e87c84acec425e95b273aae52c934f472bfc2c5367259a73fe15f8f9f4001e2c9041aac6ebab
MD5 SHA1 SHA512

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outlook.exe

Path C:\Windows\outlook.exe
Size 49KB
SHA256 96b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28
MD5 0e9379e357aba95f8b9883af9b67675e
SHA1 280a174a414e5b8588f42b6328af2c8c8ff4394f
SHA512 6cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784
SSDEEP 768:YtpL9eEj+w9vvidJyZJDe4dqEk0PiXSe0mxMr68eVniVUCosm/mzT1fHyVQh2e:FOZ9vQqDe4dPkjpBV8eVniVHm0dl
MD5 SHA1 SHA512 SSDEEP

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memory/3712-108-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/3712-114-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/5076-0-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/5076-26-0x0000000000400000-0x000000000040C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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