dfad12ac0a4cc1e1c9c1752b466360bc1ac4f4295e4f8d661d79e08570ad01af

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-10-2024 05:57

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General

Target

2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe
Size

63KB
MD5

a3833588477977db897693774bf8a370
SHA1

ad659236cdf1c1860195896b9c2dbeb9e5a440c1
SHA256

dfad12ac0a4cc1e1c9c1752b466360bc1ac4f4295e4f8d661d79e08570ad01af
SHA512

658a4fd82480f7378a6905203ff8297eb1191ed3d0fc3b0cb6f49d1909a21391e25584cabe48bac1e3fb879decb162349c3dff4cf9f59a9a871f26cb30dc1676
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhbk:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhQ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1524	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
840	2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/840-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a00000001225c-11.dat	upx
behavioral1/memory/1524-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/840-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1524-25-0x0000000000500000-0x0000000000510000-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	2024-10-10_a3833588477977db897693774bf8a370_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 840 wrote to memory of 1524	840	2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe	30
PID 840 wrote to memory of 1524	840	2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe	30
PID 840 wrote to memory of 1524	840	2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe	30
PID 840 wrote to memory of 1524	840	2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_a3833588477977db897693774bf8a370_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:840
- 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:1524

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

Replay Monitor

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Downloads

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

Filesize
63KB

MD5
772fdc3857c195c0a5b333259d3096ba

SHA1
3892d11422c4c22164eae0e9ccb07899a1adbafd

SHA256
cdc3615c13cc6a71f3b0a5cdd8f1dff4a052189529d57f66d91fb323e9989fda

SHA512
b2e687513ef87ef20e7bc30b02db0f0aac3c52fc3b0d5adbe552a63cd628c1505d2ef16bad2fac7426e401bf4c7a7d704e9307c55bb076ab8a0426e1f605b439

Download Submit
memory/840-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/840-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/840-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/840-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/840-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1524-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1524-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1524-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download