0903f3fc8813c300326ca69c4373c21af344b7c559a0e49473f6d706f73250dc

General

Target

180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
Size

34KB
MD5

180a824c53b4c2f3abdcfff6c8364189
SHA1

aaa89a3527c2a50b8c3937d2d8aea613b3fcc407
SHA256

0903f3fc8813c300326ca69c4373c21af344b7c559a0e49473f6d706f73250dc
SHA512

a4dc9a431261bd4acda26725ba4d08696825fb16850b6bbbc527257332acaa2bfc4652b09dee91a70a6006c06cd4ec485020980a3fa44f2dc7752d20fb9497ea
SSDEEP

768:C7YzkHp9LszdnkNqjhuxCZV8BJGiMfKBJuhIKxANt68SM:CpHzNqZVIGiHahb86p

Score

10^/10

evasion execution upx

Malware Config

Signatures

Disables service(s) 3 TTPs
evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
3508	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3508	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4848-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4848-13-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ksuser.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysapp1.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msimg32.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3924	sc.exe
2916	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 996	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	82
PID 4848 wrote to memory of 996	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	82
PID 4848 wrote to memory of 996	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	82
PID 4848 wrote to memory of 2916	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	83
PID 4848 wrote to memory of 2916	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	83
PID 4848 wrote to memory of 2916	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	83
PID 4848 wrote to memory of 3924	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	84
PID 4848 wrote to memory of 3924	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	84
PID 4848 wrote to memory of 3924	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	84
PID 4848 wrote to memory of 3508	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	87
PID 4848 wrote to memory of 3508	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	87
PID 4848 wrote to memory of 3508	4848	180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe	87
PID 996 wrote to memory of 3264	996	net.exe	89
PID 996 wrote to memory of 3264	996	net.exe	89
PID 996 wrote to memory of 3264	996	net.exe	89

C:\Users\Admin\AppData\Local\Temp\180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\180a824c53b4c2f3abdcfff6c8364189_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    PID:3264
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  PID:3924
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1719532878.dat, ServerMain c:\users\admin\appdata\local\temp\180a824c53b4c2f3abdcfff6c8364189_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  PID:3508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1719532878.dat

Filesize
35KB

MD5
44131fa2a512e2c59bf3243d68799d00

SHA1
7b4c598c0a936f8ed77d130ed19bf9d8713060cc

SHA256
cf7b6fbe63a90645a0e677cc1643388053ff52e3bb5b5b0b02754bfbe1e6d7b4

SHA512
1ce70632306d5d548bb7c5db47cc07ec5ff97ff264cd38474ae215ff55193d89a3bb9136a31c3dc0826a8aeffa287b9e2b989e9d53e450a1f1c2c6a79b04c565

Download Submit
memory/4848-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4848-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

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