6c0b95d70df9218328159588deec02b0717f985e8f47968e5dc8244ad53e0e5b

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 07:23

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General

Target

2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe
Size

59KB
MD5

0d1defbf1cc6f3f5d56c261019b50d4a
SHA1

0f77c60c0fe68c1b1083b136214069fd73b17c63
SHA256

6c0b95d70df9218328159588deec02b0717f985e8f47968e5dc8244ad53e0e5b
SHA512

51cd88ab832ee05ac58dc7fe4a9e7fb89efb4f916ed0ad33086abeb437b7724359aef47c82afff563e225c8288ee83488b707185f6e84b4849d774e94ca46c06
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5axK3E:z6QFElP6n+gKmddpMOtEvwDpj9aYaQE

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4632	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2420-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023472-13.dat	upx
behavioral2/memory/2420-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4632-26-0x0000000000500000-0x0000000000510000-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	2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 4632	2420	2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe	84
PID 2420 wrote to memory of 4632	2420	2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe	84
PID 2420 wrote to memory of 4632	2420	2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_0d1defbf1cc6f3f5d56c261019b50d4a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- 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:4632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
59KB

MD5
9b010000fc1ac25599ed4040bfbcbef6

SHA1
b36d41bdae6e3607495683bc1349521ce22ce683

SHA256
7dbbe2e6ac2fcaab7f8fc696b1b4abddc1a031d3523aacd48b0885730df2efd9

SHA512
75e0c4ce31127d31e4982755f928d8aa2eeeda3a785fad887412ea684ea5b2800b83763cac106759319f5f3fb8caf1880b19eeab020d148e7cf36abd7db5ae73

Download Submit
memory/2420-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2420-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/2420-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/2420-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/2420-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4632-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4632-20-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4632-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download