bc6a5364eda3842c2190fe09cce60c72479ed05db397e600e0b88cd33d2bbb1e

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
11/07/2024, 04:55

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General

Target

37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe
Size

16KB
MD5

37c69c7634f9188ab17176301f2c814e
SHA1

e829244d6ce019a1625fdd64a0fb3cc745684fc7
SHA256

bc6a5364eda3842c2190fe09cce60c72479ed05db397e600e0b88cd33d2bbb1e
SHA512

71e3cdc5fe8172289bbebce9c98c9c36ed4b4eb83b9b16849d9fb3091c0325761d7a642067f0aca32c9686d438a8d2e4855d3403e39be3b997e209e7704e5209
SSDEEP

384:PJphoJIiHGSGkO+8PfMKLTo79P6KpeXMZ:PJpi2i7GkO+8PfMKLm6KpoM

Score

8^/10

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
2604	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	lenschk.exe

Loads dropped DLL 2 IoCs

pid	Process
3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe
3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3056-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000700000001934d-3.dat	upx
behavioral1/memory/3056-10-0x00000000002B0000-0x00000000002BF000-memory.dmp	upx
behavioral1/memory/2496-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/3056-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/3056-16-0x00000000002B0000-0x00000000002BF000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lensch.dll	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\lenschk.exe	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\lenschk.exe	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2496	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	30
PID 3056 wrote to memory of 2496	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	30
PID 3056 wrote to memory of 2496	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	30
PID 3056 wrote to memory of 2496	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	30
PID 3056 wrote to memory of 2604	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	31
PID 3056 wrote to memory of 2604	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	31
PID 3056 wrote to memory of 2604	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	31
PID 3056 wrote to memory of 2604	3056	37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\lenschk.exe
  C:\Windows\system32\lenschk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2496
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\37c69c7634f9188ab17176301f2c814e_JaffaCakes118.exe.bat

Filesize
210B

MD5
4cc4864b00afd2b02e3ee4a36556a0f4

SHA1
bdcd17b4428cf36564283d2e85d9e1bd39270def

SHA256
1023c92bc5251248d5e2b16121d7e5321788a770f2064635711e101e629d15aa

SHA512
15a2c201cca2a4f895381f154db6a057ca083329a6aa068e85cec1c00fad3fd0d847165d9b7cbf164bcb4a39da19488ff9322575be9b6d76624dcb0883a45f76

Download Submit
\Windows\SysWOW64\lenschk.exe

Filesize
16KB

MD5
37c69c7634f9188ab17176301f2c814e

SHA1
e829244d6ce019a1625fdd64a0fb3cc745684fc7

SHA256
bc6a5364eda3842c2190fe09cce60c72479ed05db397e600e0b88cd33d2bbb1e

SHA512
71e3cdc5fe8172289bbebce9c98c9c36ed4b4eb83b9b16849d9fb3091c0325761d7a642067f0aca32c9686d438a8d2e4855d3403e39be3b997e209e7704e5209

Download Submit
memory/2496-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3056-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3056-10-0x00000000002B0000-0x00000000002BF000-memory.dmp

Filesize
60KB

Download
memory/3056-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3056-16-0x00000000002B0000-0x00000000002BF000-memory.dmp

Filesize
60KB

Download