82d4fd5e0ea54e7da26d3a1f5d969b4be945666bcbd5dcd7fb5eb35a04913ab8

General

Target

4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
Size

39KB
MD5

4af9c54a75713617ff10fb4304233811
SHA1

2872fd0ff8a5950c081ff3f8c8ff144c3be15e1c
SHA256

82d4fd5e0ea54e7da26d3a1f5d969b4be945666bcbd5dcd7fb5eb35a04913ab8
SHA512

ab8e0c888bff863b2aa0ba7e1c9f5d5da83825fd64f5326e80758d8950f14556b10d3a1126cc732b8af7d05f15c5802f43bca89a61011626e3f83f49c76c7e6c
SSDEEP

768:hitbxiMfKAvefJ9PS9MPNrW1WUMZ38TXkY0XfaKrj4MxoviBlUtN1UEMxA56:QvFef3AaWWUMCTwfH8MqslU/VIAI

Score

7^/10

persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1500	windspl.exe

Loads dropped DLL 2 IoCs

pid	Process
4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
1500	windspl.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4796-0-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/files/0x000a000000023470-12.dat	upx
behavioral2/memory/4796-17-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1500-24-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	windspl.exe

Drops file in System32 directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\windspl.exe	windspl.exe
File created	C:\Windows\SysWOW64\windspl.exe	windspl.exe
File created	C:\Windows\SysWOW64\wmimgr32.dl_	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmimgr32.dll	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\windspl.exe	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\windspl.exe	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmimgr32.dl_	windspl.exe
File created	C:\Windows\SysWOW64\wmimgr32.dll	windspl.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
Token: SeDebugPrivilege	1500	windspl.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
1500	windspl.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 1500	4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe	84
PID 4796 wrote to memory of 1500	4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe	84
PID 4796 wrote to memory of 1500	4796	4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4af9c54a75713617ff10fb4304233811_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\SysWOW64\windspl.exe
  "C:\Windows\system32\windspl.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1500

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\windspl.exe

Filesize
39KB

MD5
4af9c54a75713617ff10fb4304233811

SHA1
2872fd0ff8a5950c081ff3f8c8ff144c3be15e1c

SHA256
82d4fd5e0ea54e7da26d3a1f5d969b4be945666bcbd5dcd7fb5eb35a04913ab8

SHA512
ab8e0c888bff863b2aa0ba7e1c9f5d5da83825fd64f5326e80758d8950f14556b10d3a1126cc732b8af7d05f15c5802f43bca89a61011626e3f83f49c76c7e6c

Download Submit
C:\Windows\SysWOW64\wmimgr32.dll

Filesize
23KB

MD5
9ebb3e4fc0c32524ba4098e214a06150

SHA1
41d0964a70edc0875ff9a8091b6911e18684e1ed

SHA256
f183002d0c6412dc694b580e0b33194766921415e77f713d46cb29dac6ae196d

SHA512
d7338292e03fd374fec772787e7561a6d6e9ca0b108cf4b6e9f79647bf0f64960ec78979e986f8bfa9874d907ecacca81183faacdd350e890c0dab02ca50298a

Download Submit
memory/1500-24-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4796-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4796-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads