75cd2089513e25dc76f966cf623f749a23ebea8f108e0db7ab63f12e39a8bba8

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 15:37

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General

Target

202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe
Size

87KB
MD5

1b9b92ed587191c611ca4c0413263b91
SHA1

ff80bb9abddf3729bcee95c3f13029eb67605cb9
SHA256

75cd2089513e25dc76f966cf623f749a23ebea8f108e0db7ab63f12e39a8bba8
SHA512

4437bb491a2b1579d5f9bcf0aac2473efc7584a472ae13c8d40d1d0e049e2b694a2b7ccbc6e0c71b4225b230619c703b5f7defeb0228053f306e59d01ee5a216
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtISGn:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgM

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-1-5-21-1826666146-2574340311-1877551059-1000\Control Panel\International\Geo\Nation	202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3048-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0007000000023402-13.dat	upx
behavioral2/memory/3048-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2496-26-0x0000000000500000-0x000000000050F000-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 3048 wrote to memory of 2496	3048	202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe	88
PID 3048 wrote to memory of 2496	3048	202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe	88
PID 3048 wrote to memory of 2496	3048	202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202404141b9b92ed587191c611ca4c0413263b91cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2496

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
87KB

MD5
5ce25b554864d456321259202bfb98e3

SHA1
66ff0e76d19c2a456d7ca379e46866e7d49f8a4e

SHA256
5d355eebf85c00f86b6bcd2cce9fa0d2b2e46331a75a82688da1591031fe3cc2

SHA512
81d4494d176bcf5f0e2f2691e1b0e03da56315c9a91a7f8b011999a5370de8a9a08e5db0f30c8379daae2fad2df2b0e03af0adca08d3aa94cc6a67fa19a23d56

Download Submit
memory/2496-19-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/2496-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/2496-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3048-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3048-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3048-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download