2769cda05f529f1ac3189993cb0632e9a67a3563a90c1848018796363583f8c0

General

Target

b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe
Size

11KB
MD5

b1d0b2c809c52db4ed1f1a61cc48d6e7
SHA1

6279feb68fe09dd9a283566c98bd238f57e8d2f9
SHA256

2769cda05f529f1ac3189993cb0632e9a67a3563a90c1848018796363583f8c0
SHA512

12bf5ff9f8a6ac69d8fe56909f2ad937505617885c9e189d7645bd5a7ac288a82cb8c579fe74669d422f18b4ebbb98541d98495b068726ab31b8df1f0b101f9b
SSDEEP

192:6FdN2aCBB8MG+JwiecLVUrS8Q4PU94m6iIekJ2sLmxCo9F29EZ6LQnME87VeQcZ:8NgjaieWUrSvFtZULIB9F27cMb2

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
2860	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2564	cmbdafk.exe

Loads dropped DLL 2 IoCs

pid	Process
3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe
3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3040-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x0008000000016ed2-3.dat	upx
behavioral1/memory/3040-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2564-16-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\cmbdafk.exe	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cmbdaf.dll	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cmbdafk.exe	b1d0b2c809c52db4ed1f1a61cc48d6e7_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	b1d0b2c809c52db4ed1f1a61cc48d6e7_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 3040 wrote to memory of 2564	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	31
PID 3040 wrote to memory of 2564	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	31
PID 3040 wrote to memory of 2564	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	31
PID 3040 wrote to memory of 2564	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	31
PID 3040 wrote to memory of 2860	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	32
PID 3040 wrote to memory of 2860	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	32
PID 3040 wrote to memory of 2860	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	32
PID 3040 wrote to memory of 2860	3040	b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\cmbdafk.exe
  C:\Windows\system32\cmbdafk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2564
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2860

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\b1d0b2c809c52db4ed1f1a61cc48d6e7_JaffaCakes118.exe.bat

Filesize
210B

MD5
18685ea00b1002dfe817bab0f1d00de9

SHA1
608b2dace7199ebdc6da9a0ed06caa21ff084be0

SHA256
e86c5942d1ad174fc25458f75ce1f92526d494fd8a982d01239b43df5fed21ac

SHA512
1d298b3d6cbf8942f8bec3fcf6291587f79c1ae5e976c75cf421000d87301aea6dbac57760d122d1f4a71cd503d2ee1fd083ea2b52e62893d0ec7965bde85bef

Download Submit
\Windows\SysWOW64\cmbdafk.exe

Filesize
11KB

MD5
b1d0b2c809c52db4ed1f1a61cc48d6e7

SHA1
6279feb68fe09dd9a283566c98bd238f57e8d2f9

SHA256
2769cda05f529f1ac3189993cb0632e9a67a3563a90c1848018796363583f8c0

SHA512
12bf5ff9f8a6ac69d8fe56909f2ad937505617885c9e189d7645bd5a7ac288a82cb8c579fe74669d422f18b4ebbb98541d98495b068726ab31b8df1f0b101f9b

Download Submit
memory/2564-16-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3040-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3040-10-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/3040-9-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/3040-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3040-13-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/3040-14-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download

Analysis

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