7ac734181895dbe1ad094cd21d9da9328622f0302611c0b84b23afa677982266

General

Target

ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
Size

12KB
MD5

ef86ce41bf8067df656d6b32a40bb526
SHA1

15c163dde04032e62ad54eaa52af06d14ba002c3
SHA256

7ac734181895dbe1ad094cd21d9da9328622f0302611c0b84b23afa677982266
SHA512

36a6477cff7f0e5742d83a335eaf4e336548fa9eed21e333e8eedad3624a0c9042fae01b5251b1eda95035306c32edd2a8a9f970fc1f90f1e9cea66463129343
SSDEEP

192:hgqeHj2QpaaMOyhyGwWIlDeiUX3bXL+V9Mii5uHWNFDyS91/7xqsHCuTKZ:hrEj2ipQyGwW4Mfii5VDy+keCA8

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
2816	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	delnicek.exe

Loads dropped DLL 2 IoCs

pid	Process
2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2376-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x0009000000015689-3.dat	upx
behavioral1/memory/2376-5-0x0000000000230000-0x000000000023F000-memory.dmp	upx
behavioral1/memory/2376-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2464-14-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\delnice.dll	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\delnicek.exe	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\delnicek.exe	ef86ce41bf8067df656d6b32a40bb526_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	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2464	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	30
PID 2376 wrote to memory of 2464	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	30
PID 2376 wrote to memory of 2464	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	30
PID 2376 wrote to memory of 2464	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	30
PID 2376 wrote to memory of 2816	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	32
PID 2376 wrote to memory of 2816	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	32
PID 2376 wrote to memory of 2816	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	32
PID 2376 wrote to memory of 2816	2376	ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\delnicek.exe
  C:\Windows\system32\delnicek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2464
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2816

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\ef86ce41bf8067df656d6b32a40bb526_JaffaCakes118.exe.bat

Filesize
210B

MD5
b1d497987141f21fef3aec93f8423c72

SHA1
2ee7d62b42a3d8aa37a3033e15f86766a81c80fb

SHA256
a0c5c7da1cd8b1cb80b210384a77020a6455a8c004f56f19a7f68191a5531e79

SHA512
672b35c676ee6db3f25b3f308fad6c800cc8ab60a12c4e8b4888c68f1192bf63f99c2482a024e3e2e316af314d8ff23186f836a3e2d3094d9e40ad9b2feb0c03

Download Submit
\Windows\SysWOW64\delnicek.exe

Filesize
12KB

MD5
ef86ce41bf8067df656d6b32a40bb526

SHA1
15c163dde04032e62ad54eaa52af06d14ba002c3

SHA256
7ac734181895dbe1ad094cd21d9da9328622f0302611c0b84b23afa677982266

SHA512
36a6477cff7f0e5742d83a335eaf4e336548fa9eed21e333e8eedad3624a0c9042fae01b5251b1eda95035306c32edd2a8a9f970fc1f90f1e9cea66463129343

Download Submit
memory/2376-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2376-5-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2376-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2376-12-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2464-14-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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