974a7fe64e48d4a12477ddd778b01c09ea23b71d26cebfafcf779571dda521f4

General

Target
jaffacakes118__27b491a8affa78505575049aee47afab.exe
Size 55KB
Sample260920-1sssfstthy
SHA256 974a7fe64e48d4a12477ddd778b01c09ea23b71d26cebfafcf779571dda521f4
MD5 27b491a8affa78505575049aee47afab
SHA1 416e5de3351513a1d204ca2fff7a13da757ab2c2
SHA512 d067481c61b8e81e954ffa30017e5cc3d601df36f6fc18b870aebce44666bf3a620adaf229b1f68b577404a1034df8758b69711be993b8432c4444ea0976b0c5
SSDEEP 1536:V3cpyORJLuB4P4AJJv4Romu/90elomJ9RvS:V3c1fP4AJJv45Soq9tS
TLSH
T1D243BF2A33C1C8B7E95B567158378B7EE3F7AE04032052536F64AF7F7C31196982A582
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	jaffacakes118__27b491a8affa78505575049aee47afab.exe

Loads dropped DLL 1 IoCs

pid	Process
4824	jaffacakes118__27b491a8affa78505575049aee47afab.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\Desktop.ini	jaffacakes118__27b491a8affa78505575049aee47afab.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\target.lnk	jaffacakes118__27b491a8affa78505575049aee47afab.exe
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer	attrib.exe
File opened for modification	C:\Program Files (x86)\Microsoft\ie13\Internat Explorer\Desktop.ini	jaffacakes118__27b491a8affa78505575049aee47afab.exe

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

System Information Discovery
T1082

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
4644	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__27b491a8affa78505575049aee47afab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\DefaultIcon\ = "%1"	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open\command	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft\\%*ie%S3\\%2Internat Explorer\""	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.jgp\ = "jgpfile"	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\shell\open	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.jgp	jaffacakes118__27b491a8affa78505575049aee47afab.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\jgpfile\DefaultIcon	jaffacakes118__27b491a8affa78505575049aee47afab.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 3788	4824	jaffacakes118__27b491a8affa78505575049aee47afab.exe	88
PID 4824 wrote to memory of 4644	4824	jaffacakes118__27b491a8affa78505575049aee47afab.exe	91

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3788	attrib.exe

C:\Users\Admin\AppData\Local\Temp\jaffacakes118__27b491a8affa78505575049aee47afab.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118__27b491a8affa78505575049aee47afab.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\ie13\Internat Explorer" +s
  2⤵
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:3788
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp.bat" "
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4644

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

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsjF0D1.tmp\System.dll
Size 11KB
SHA256 dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3
MD5 00a0194c20ee912257df53bfe258ee4a
SHA1 d7b4e319bc5119024690dc8230b9cc919b1b86b2
SHA512 3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667
SSDEEP 192:7DKnJZCv6VmbJQC+tFiUdK7ckD4gRXKQx+LQ2CSF:7ViJrtFRdbmXK8+PCw
TLSH
T113325B5993A0C1F3D5A0823C0DA73A7B1379722016B14FA3CFA35841AE196D7AC7D237
MD5 SHA1 SHA512 SSDEEP TLSH

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tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp.bat
Size 216B
SHA256 e2dfe70301e6b8a5e960af107f19c7925546d80872d0e6b8248443bfbab4b582
MD5 d2cfd15aaaf735062d45e551135fd1ea
SHA1 f6eb13092db958063cb2207fca170cdf9e27013f
SHA512 24c51c179a7f011683c0ee57e19f4d919119260f8aeb7747730120a4ec49252ac9b023eed15b74647fb26f9b90a179c9f00a044dbc5b4b623d346f5e38ed2dd9
TLSH
T186D0A7114159EA7D0445DA3B63F5C60DE5610F662B482B248221DE88596151EF0C120A
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