6cd4c246251f824d038de4ee3836ba8b803f154ad854181b22426e202766c976

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 20:11

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General

Target

2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe
Size

38KB
MD5

838a185aaf41e3093fd9052104952469
SHA1

51ba1ef0e79be4db9c1a720997f8879912ba4367
SHA256

6cd4c246251f824d038de4ee3836ba8b803f154ad854181b22426e202766c976
SHA512

75feabeae58cef6e959b691f2c29e9b880636d43d7cb6d504374420aaa2bba2bda77d5b88be05e517e1f1e7e3b9cf569dfa9b8f16df1a559634498394a99e771
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITu:qDdFJy3QMOtEvwDpjjWMl7Tu

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2192	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1344	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1344-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012270-11.dat	upx
behavioral1/memory/1344-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2192-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2192	1344	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe	30
PID 1344 wrote to memory of 2192	1344	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe	30
PID 1344 wrote to memory of 2192	1344	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe	30
PID 1344 wrote to memory of 2192	1344	2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-01_838a185aaf41e3093fd9052104952469_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
38KB

MD5
fafb87e5fb56361ae0ec8b870bbf41c9

SHA1
432acd65002d5bd9db19f5d38542e93d1d8c0d59

SHA256
9cb2d721f21438e97b65ac0004fc1b6f08dff0f88524552e3cbc85ce43cfc945

SHA512
ef137633bd13310257ad82f9b782e845ac519e16315ebc1bd01172f1c35b40d3fcc7836e71adbe62d856e71222910e371b78a84d24790ba72cb9e08dbaacd0f8

Download Submit
memory/1344-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1344-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1344-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1344-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1344-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2192-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2192-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download