79014067933e435f9bcd8e6415709870e5388512ca321d6768a240963277f6d1

Analysis

max time kernel
156s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 12:10

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General

Target

2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe
Size

74KB
MD5

5a340bd1cc823fb8b8d3c36c780ca722
SHA1

f4aa6bf36227a0dcdc748cc13804b22829d11b75
SHA256

79014067933e435f9bcd8e6415709870e5388512ca321d6768a240963277f6d1
SHA512

5e0c9c831c94ac8d6cea631af92551de9d504430da219d397171cb0e50901a92dd15551560ba0d26814a01cb2dce9fcbee79c8c99e6c23c841f76c00ae7f118c
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOA+YSv:T6a+rdOOtEvwDpjNZ

Score

7^/10

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1604	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3268-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3268-3-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000500000001e7e5-14.dat	upx
behavioral2/memory/1604-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 1604	3268	2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe	97
PID 3268 wrote to memory of 1604	3268	2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe	97
PID 3268 wrote to memory of 1604	3268	2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe	97

C:\Users\Admin\AppData\Local\Temp\2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-06_5a340bd1cc823fb8b8d3c36c780ca722_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1604

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
75KB

MD5
cda1a70cfd3ba4c9bafd8da36c929627

SHA1
f46e85d925f27fabf0425efd60e93c661f3b0ce8

SHA256
653bf52bd59ba7c6e375f835df734bac041fffbc9a05114050e212da52566c25

SHA512
52e88021efad452ade0d84c13458ccdaddc5534064162c14045ef4bf49e4dccb1d9c73a1190e814300bfd59113fc7a7a4c2eeae658aacf1783466d418141c75b

Download Submit
memory/1604-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1604-20-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1604-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3268-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3268-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3268-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3268-3-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3268-4-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download