6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945

General

Target

6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
Size

231KB
MD5

0899ed47b34f040f6851ba43678b0a16
SHA1

ac38b21788bf43e2646faf084dc98d080770dfee
SHA256

6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945
SHA512

51938c1f3a2c502b74d4b9e110b7ec96281e50acbc1442dbcd3ee8c5ded858918804b189c11e6ec652dcd8c78fea8764237a60e7b8e01aab05026233a7bfc45f
SSDEEP

3072:WaljkuxzrQMV46d/u48NOusseWopayA7j3iPFRjW5wIEcY5:WtuBp46pu46Grpan3iPFs5wII

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

ctfnom.exe

pid process

3964 ctfnom.exe

pid	process
3964	ctfnom.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1152-132-0x0000000000400000-0x000000000043B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe	upx
C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe	upx
behavioral2/memory/3964-140-0x0000000000400000-0x000000000043B000-memory.dmp	upx
behavioral2/memory/1152-141-0x0000000000400000-0x000000000043B000-memory.dmp	upx
behavioral2/memory/3964-142-0x0000000000400000-0x000000000043B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ctfnom.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ctfnom = "C:\\Users\\Admin\\AppData\\Roaming\\Dir\\ctfnom.exe"	ctfnom.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\windows\CurrentVersion\Run	ctfnom.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{3026FC4F-15D5-4AFE-8803-F97121738238}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{ED9C8454-9F3D-4F31-B51A-442F28107E15}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exectfnom.exe

pid	process
1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
3964	ctfnom.exe
3964	ctfnom.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exectfnom.exe

pid	process
1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
3964	ctfnom.exe
3964	ctfnom.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe

description	pid	process	target process
PID 1152 wrote to memory of 3964	1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe	ctfnom.exe
PID 1152 wrote to memory of 3964	1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe	ctfnom.exe
PID 1152 wrote to memory of 3964	1152	6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe	ctfnom.exe

C:\Users\Admin\AppData\Local\Temp\6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe
"C:\Users\Admin\AppData\Local\Temp\6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe
  C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3964

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3172

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe

Filesize
231KB

MD5
0899ed47b34f040f6851ba43678b0a16

SHA1
ac38b21788bf43e2646faf084dc98d080770dfee

SHA256
6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945

SHA512
51938c1f3a2c502b74d4b9e110b7ec96281e50acbc1442dbcd3ee8c5ded858918804b189c11e6ec652dcd8c78fea8764237a60e7b8e01aab05026233a7bfc45f

Download Submit
C:\Users\Admin\AppData\Roaming\Dir\ctfnom.exe

Filesize
231KB

MD5
0899ed47b34f040f6851ba43678b0a16

SHA1
ac38b21788bf43e2646faf084dc98d080770dfee

SHA256
6e9ab22b90b8d487c77eda3a6382cc66d9647d956beb598fa992d11821be0945

SHA512
51938c1f3a2c502b74d4b9e110b7ec96281e50acbc1442dbcd3ee8c5ded858918804b189c11e6ec652dcd8c78fea8764237a60e7b8e01aab05026233a7bfc45f

Download Submit
memory/1152-132-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1152-141-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3964-135-0x0000000000000000-mapping.dmp

Download
memory/3964-140-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3964-142-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads