b55f17f2cda3119a90f0b60ca59ca8d7c433e0a99630ea0f63fea5a41e5dc347

Analysis

max time kernel
150s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 04:52

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General

Target

ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
Size

10KB
MD5

ef195e2c3a8fb84cdbf9c1f516b4a5da
SHA1

45034550f721a8f1e40b10e1b958faf36e121a82
SHA256

b55f17f2cda3119a90f0b60ca59ca8d7c433e0a99630ea0f63fea5a41e5dc347
SHA512

d87f0470bba5b6bb8d02ef1b6a9e76095d3971a8e89b26fc7bedf6bdea42c21ee371e4a03605915ff5edd51ac3103acf83ac8769a73a01ea9502417bb1d1da85
SSDEEP

192:kDuFSHP37IQsDocCg3wPjdadrLVc7PG1KnoeSjKSBH1aXZl819/V3Z:2KSvrIQsD1APjdadrBEoHR18l8b

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

Executes dropped EXE 1 IoCs

pid	Process
4476	mduaeyk.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4728-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/files/0x0008000000023473-4.dat	upx
behavioral2/memory/4728-8-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4476-10-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4476-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mduaey.dll	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mduaeyk.exe	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\mduaeyk.exe	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mduaeyk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 4476	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	84
PID 4728 wrote to memory of 4476	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	84
PID 4728 wrote to memory of 4476	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	84
PID 4728 wrote to memory of 2032	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	85
PID 4728 wrote to memory of 2032	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	85
PID 4728 wrote to memory of 2032	4728	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\SysWOW64\mduaeyk.exe
  C:\Windows\system32\mduaeyk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4476
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2032

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe.bat

Filesize
210B

MD5
15e704e2c2e38e9c7a70e0f422680eb0

SHA1
ac29ba4e75c265fdfce89e647169e8bba9247268

SHA256
282c669b67786b00f2aabc061a99e538a00a6b1bda837008d0fd134f9e355292

SHA512
65fc2d7cab8363cd4a7031d794fa8c19c3b7f23ea36984b9a51cc593ac9fc1049772430cf773377852f65eeedec79989ce027a36238a1bb57acfac32e0bb27e2

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

Filesize
10KB

MD5
ef195e2c3a8fb84cdbf9c1f516b4a5da

SHA1
45034550f721a8f1e40b10e1b958faf36e121a82

SHA256
b55f17f2cda3119a90f0b60ca59ca8d7c433e0a99630ea0f63fea5a41e5dc347

SHA512
d87f0470bba5b6bb8d02ef1b6a9e76095d3971a8e89b26fc7bedf6bdea42c21ee371e4a03605915ff5edd51ac3103acf83ac8769a73a01ea9502417bb1d1da85

Download Submit
memory/4476-10-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4476-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4728-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4728-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download