7c7e8a8bdb21f2fcb552fffcb0d20ed00ac648ac78caa080d49345a7f81e241f

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/09/2024, 18:23

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General

Target

2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe
Size

36KB
MD5

436acc9b77bc81e24c6c5c52fd5387e8
SHA1

5650ddbc0cfb9b6c9b034b0892d3013afb1ad746
SHA256

7c7e8a8bdb21f2fcb552fffcb0d20ed00ac648ac78caa080d49345a7f81e241f
SHA512

01b30a26372e48578ec519f87667b867d1042e75d03bbcee2209928b6b7e3c3860a2023bd1802bf9f8ea9f5a2789b6225887088e84cf903c376105171fd34c98
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6f:qDdFJy3QMOtEvwDpjjWMl7T6f

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2188	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000016d32-11.dat	upx
behavioral1/memory/2188-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1640-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2188-27-0x0000000000500000-0x0000000000510000-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	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2188	1640	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe	30
PID 1640 wrote to memory of 2188	1640	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe	30
PID 1640 wrote to memory of 2188	1640	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe	30
PID 1640 wrote to memory of 2188	1640	2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_436acc9b77bc81e24c6c5c52fd5387e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640
- 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:2188

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
36KB

MD5
26c299e5bb1390e5f7a11789aa63daf1

SHA1
b2f4d49275d15e817ce421770dd2636cae664bda

SHA256
6cfc945d78d83c9acc760ee75c1be8d20c83be43bd1e323572427bc9f8cf3a15

SHA512
c234769002885c5d4df3b0653d412fee6ff013995915b1798c6629d18efc1c6be4caf9148a2973d68e595728165b46dde4aa8a6b4db6364841150886cf896784

Download Submit
memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1640-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1640-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1640-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2188-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2188-20-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2188-19-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2188-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download