ecc3d7085a56f8623f5f4d1881278e8b562980fedfaca55823d1ac5fc3979824

General

Target

ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe
Size

29KB
MD5

ab2cd84de81cf3f16cd1b783f6b08a4f
SHA1

750b96eeb3d4e1d6ddc0cac3a78693135e8b0a63
SHA256

ecc3d7085a56f8623f5f4d1881278e8b562980fedfaca55823d1ac5fc3979824
SHA512

aedbebaa3f07e03021232cf249eb74a451600c620318fe0807e98739c2f85e751088b261294c30c88a5fcff120ef7f88ee4e91513ebfc71387fd188abda71590
SSDEEP

768:IFpoxeFRQ7SW5LBCp2KkyF7QCmYEw59JS7Fp:qpmefQ7bVKRQCmYEwvJS7Fp

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
484	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2028	cenbeznk.exe

Loads dropped DLL 2 IoCs

pid	Process
2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe
2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2780-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/files/0x0008000000016d28-8.dat	upx
behavioral1/memory/2780-12-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2028-15-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\cenbeznk.exe	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cenbezn.dll	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cenbeznk.exe	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2028	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	30
PID 2780 wrote to memory of 2028	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	30
PID 2780 wrote to memory of 2028	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	30
PID 2780 wrote to memory of 2028	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	30
PID 2780 wrote to memory of 484	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	31
PID 2780 wrote to memory of 484	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	31
PID 2780 wrote to memory of 484	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	31
PID 2780 wrote to memory of 484	2780	ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\cenbeznk.exe
  C:\Windows\system32\cenbeznk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2028
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ab2cd84de81cf3f16cd1b783f6b08a4f_JaffaCakes118.exe.bat

Filesize
210B

MD5
128f6c4108aec0fba4dc68a6c2771fa1

SHA1
e2b5731b411e0f717da23bc7d562933365defa47

SHA256
55472084f59601ff29b72b001bdc183aa49e7d63dab89a95da8515bf43091123

SHA512
085cda44cca7156044f48ffae9c36f9792952479df7065f674be4817bce3e4e6fd7f2ed1e1ae13e791016eb5e7a5dfe653e4ab7086ff70cfb2197951d69aed32

Download Submit
C:\Windows\SysWOW64\cenbeznk.exe

Filesize
29KB

MD5
ab2cd84de81cf3f16cd1b783f6b08a4f

SHA1
750b96eeb3d4e1d6ddc0cac3a78693135e8b0a63

SHA256
ecc3d7085a56f8623f5f4d1881278e8b562980fedfaca55823d1ac5fc3979824

SHA512
aedbebaa3f07e03021232cf249eb74a451600c620318fe0807e98739c2f85e751088b261294c30c88a5fcff120ef7f88ee4e91513ebfc71387fd188abda71590

Download Submit
memory/2028-15-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2780-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2780-11-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download
memory/2780-10-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download
memory/2780-12-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2780-14-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download
memory/2780-13-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download

Analysis

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