b55f17f2cda3119a90f0b60ca59ca8d7c433e0a99630ea0f63fea5a41e5dc347

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

Deletes itself 1 IoCs

pid	Process
2228	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	mduaeyk.exe

Loads dropped DLL 2 IoCs

pid	Process
2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2384-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0008000000016da7-3.dat	upx
behavioral1/memory/2384-19-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/2504-21-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\mduaeyk.exe	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mduaey.dll	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mduaeyk.exe	ef195e2c3a8fb84cdbf9c1f516b4a5da_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	ef195e2c3a8fb84cdbf9c1f516b4a5da_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 2384 wrote to memory of 2504	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	30
PID 2384 wrote to memory of 2504	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	30
PID 2384 wrote to memory of 2504	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	30
PID 2384 wrote to memory of 2504	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	30
PID 2384 wrote to memory of 2228	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2228	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2228	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2228	2384	ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\mduaeyk.exe
  C:\Windows\system32\mduaeyk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2504
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2228

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\ef195e2c3a8fb84cdbf9c1f516b4a5da_JaffaCakes118.exe.bat

Filesize
210B

MD5
15e704e2c2e38e9c7a70e0f422680eb0

SHA1
ac29ba4e75c265fdfce89e647169e8bba9247268

SHA256
282c669b67786b00f2aabc061a99e538a00a6b1bda837008d0fd134f9e355292

SHA512
65fc2d7cab8363cd4a7031d794fa8c19c3b7f23ea36984b9a51cc593ac9fc1049772430cf773377852f65eeedec79989ce027a36238a1bb57acfac32e0bb27e2

Download Submit
\Windows\SysWOW64\mduaeyk.exe

Filesize
10KB

MD5
ef195e2c3a8fb84cdbf9c1f516b4a5da

SHA1
45034550f721a8f1e40b10e1b958faf36e121a82

SHA256
b55f17f2cda3119a90f0b60ca59ca8d7c433e0a99630ea0f63fea5a41e5dc347

SHA512
d87f0470bba5b6bb8d02ef1b6a9e76095d3971a8e89b26fc7bedf6bdea42c21ee371e4a03605915ff5edd51ac3103acf83ac8769a73a01ea9502417bb1d1da85

Download Submit
memory/2384-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2384-5-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/2384-10-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/2384-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2504-21-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

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