4262da59cf59bf0e54d7a8866f9d07a618f3da91ba65d833264a2b9086fa1f12

General

Target

8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
Size

16KB
MD5

8607612a3704a65bdf35037bf3e82c40
SHA1

76d54dbe0101c511acf0eb1ff9f36b161ac6bea5
SHA256

4262da59cf59bf0e54d7a8866f9d07a618f3da91ba65d833264a2b9086fa1f12
SHA512

eec87228cf12572b1e8f5869f608518d8cf6ba8320f2a60559be27a26a6af1d385c59cd3a1445576cd16746960a1c2cd47ba104f2bb07628e6265a6ee0625098
SSDEEP

384:BIhNdXTCtEgZzAltmZueXq2o5+rBmJqGISR:BI/FaEAzAltmZ42ocNG9R

Score

10^/10

discovery evasion execution spyware stealer 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
Reads user/profile data of web browsers 2 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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2540-1-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral1/memory/2540-5-0x0000000000400000-0x000000000040D000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\aksuser.dll	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\aksuser.dll	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mmgl18.dll	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe

Launches sc.exe 2 IoCs

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

pid	Process
2700	sc.exe
2080	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2988	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	30
PID 2540 wrote to memory of 2988	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	30
PID 2540 wrote to memory of 2988	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	30
PID 2540 wrote to memory of 2988	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	30
PID 2540 wrote to memory of 2700	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	31
PID 2540 wrote to memory of 2700	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	31
PID 2540 wrote to memory of 2700	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	31
PID 2540 wrote to memory of 2700	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	31
PID 2540 wrote to memory of 2080	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	33
PID 2540 wrote to memory of 2080	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	33
PID 2540 wrote to memory of 2080	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	33
PID 2540 wrote to memory of 2080	2540	8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe	33
PID 2988 wrote to memory of 2724	2988	net.exe	36
PID 2988 wrote to memory of 2724	2988	net.exe	36
PID 2988 wrote to memory of 2724	2988	net.exe	36
PID 2988 wrote to memory of 2724	2988	net.exe	36

C:\Users\Admin\AppData\Local\Temp\8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8607612a3704a65bdf35037bf3e82c40_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2724
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2080

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

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

Service Stop

2

T1489

Replay Monitor

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Downloads

memory/2540-1-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2540-5-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

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