f7754197fa185e6aeac58bf599e8eaa96e555570a289358d80f8fe76415e6e3e

Analysis

max time kernel
132s
max time network
141s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 05:22

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General

Target

2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe
Size

55KB
MD5

02491a93caa56a59f78461e833be5363
SHA1

de152f3cf91c1130058da9b5fd24d1a0e8194c8e
SHA256

f7754197fa185e6aeac58bf599e8eaa96e555570a289358d80f8fe76415e6e3e
SHA512

8f9acf15921db4e6d77a3ec8d30222d43c65afa1f11d68888e3e90c988eb9dd113e6d49739bdddcecaaf2141ff6e3654ef645d8b3f1a4793a5cdd06803335441
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj31ik/9E9:z6a+CdOOtEvwDpj8

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3028	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2172	2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2172-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012280-11.dat	upx
behavioral1/memory/2172-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3028-25-0x0000000000500000-0x0000000000510000-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	2024-11-30_02491a93caa56a59f78461e833be5363_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 2172 wrote to memory of 3028	2172	2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe	30
PID 2172 wrote to memory of 3028	2172	2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe	30
PID 2172 wrote to memory of 3028	2172	2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe	30
PID 2172 wrote to memory of 3028	2172	2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-30_02491a93caa56a59f78461e833be5363_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- 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:3028

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
55KB

MD5
7120914c20273e5828aa76596519c620

SHA1
361d1e98a4c860ad03bf0ab11086590296f87de4

SHA256
9595e51a5b8216366a4560039ba5d6f0b6b4732d4020622937715eaeefaedb4a

SHA512
834549c665a820ccd86ad77ea1fa4c450e33ff337f2fbfb9d0a8a505dd5e5b8863825d057901d3ac4ef4821451304bc85518524b6b7e9b3fab61516c41611857

Download Submit
memory/2172-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2172-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2172-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2172-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2172-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3028-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3028-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3028-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download