84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07

General

Target
jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Size 20KB
Sample260924-esbchsdg44
SHA256 84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07
MD5 e0f91e0f6ef46a46681b3dad3e3b6e46
SHA1 5fd8f035926df561d07968ddf1a951c3b0ecbcef
SHA512 4821d898515d6a9caeea627c0a37d5b8eaa95f8fffaab1317adcc991f2a4edb32a3a8ccb831f4efde8c3ffb1c23bdbed7a23a14d8f1f83946e283b41494b5d11
SSDEEP 384:TRFetbovP8mWwdPUJq9RqKX9oSuRxJJc8L9IxF34aMGCdjqW+KA:XOboHOsUJq9wKX9yRNciIxF34AiJ
TLSH
T124923C71BBD504E2E3B507F12AF00A1E0BAEEC244F3794BAD22F928955E4562F539343
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\msnmsg = "{DA191DE0-AA86-4ED0-4B87-293D48B2AE99}"	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe

Loads dropped DLL 3 IoCs

pid	Process
1388	rundll32.exe
1388	rundll32.exe
1388	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\unxxx.bat	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Messenger\msgmr.dll	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\Framdee.ttf	rundll32.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4384	cmd.exe

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	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA191DE0-AA86-4ED0-4B87-293D48B2AE99}	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA191DE0-AA86-4ED0-4B87-293D48B2AE99}\InprocServer32\ = "C:\\Program Files\\Messenger\\msgmr.dll"	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA191DE0-AA86-4ED0-4B87-293D48B2AE99}\InprocServer32\ThreadingModel = "Apartment"	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DA191DE0-AA86-4ED0-4B87-293D48B2AE99}\InprocServer32	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1388	1524	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe	89
PID 1524 wrote to memory of 4384	1524	jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe	90

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_84d5631e6d7a96788db21064f99d0da574c9ac410f09e767232da0a884691f07.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 "C:\Program Files\Messenger\msgmr.dll",UIMessage
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Windows\system32\unxxx.bat"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4384

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

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

msgmr.dll

Path C:\Program Files\Messenger\msgmr.dll
Size 15KB
SHA256 9bb392338cd8f18151f2805d524904483cd7fe0496447b13ad8bae34cbbb727b
MD5 127deda3d50cd57d95eb5ea6451975f3
SHA1 38bf7346588bbd331bd42fa27f77d6d2c77bdf4c
SHA512 e8ff15664ab6adb43e74eb633031a23fd081c414063168b89a113841a4645552dbe7b07bd0bf4a44f448b10abc80e3f9b022dca039be222779fa09668b8fce0d
SSDEEP 384:nWcPNnDUJq9RqKX9oSuRxJJc8L9IxF34aMGCdjqW+KA:nWSnDUJq9wKX9yRNciIxF34AiJ
TLSH
T1D1621B31BBE501F3E3A606B62AF00E1B1B79FC108F37942AD65F91942AE5512F53A343
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Framdee.ttf

Path C:\Windows\Fonts\Framdee.ttf
Size 9KB
SHA256 8525b22366098a768606e2db4498cc6963bb742b24c9e81e911f506c6d9dba44
MD5 7e4b0e93755075769a564e013a3dfe17
SHA1 2f8b11f9b76d7c16fbc730824d809d42f1f59aff
SHA512 2e1058faf71a037c14e4806124e5af23c17e9ecd1a8f4075b076b55ec009eae6f83ea4743cb990030b247db1dc59a14f12871c36961cb691dc8ffd088367cdb8
SSDEEP 192:SXqKNdDa8t9Z1AS/A+MRxJJc8qmAQqkIxF34aZaGCdKoK:6qKX9oSuRxJJc8L9IxF34aMGCdj
TLSH
T17A121832BAE609F3C29912F126B04E1F2FAEDC1497754472D763D6A42AD5222F53F342
MD5 SHA1 SHA512 SSDEEP TLSH

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unxxx.bat

Path C:\Windows\SysWOW64\unxxx.bat
Size 304B
SHA256 3a91b471b2a6bb833df5799fdf06c75ed8c659efd1ecd95dede8d302a6d1689d
MD5 b89cbba12af68e72983996e08737813b
SHA1 59dfa42b971b6dc1263727010e47a1ba91e75a95
SHA512 04998fac3e806e7834253e816a3f0d1ac1103b2faac713bd43d17afeff308c6c0be95e768b09d5038137997a3bd897266a74afdc838b24d3fb6202dc070aafbe
TLSH
T178E07D8133804DDC2810CD3F04A103CCA1945B7536442701A11BC58B15E09EEEA919A6
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads