115a05ca0e2a92548f84ceb73cb4b8f6b2e56a580badef355a46cd82ef78a015

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2024, 05:58

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General

Target

2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe
Size

116KB
MD5

f017d04002d0109f574bd031dded5c97
SHA1

a1235462b192030fe8202eeb8e4999b6107fd831
SHA256

115a05ca0e2a92548f84ceb73cb4b8f6b2e56a580badef355a46cd82ef78a015
SHA512

186d00d40056bfd6c3a55bbe27609b699cc1cb69cc6c828cbdd2bde461b0fa19493051ca1013803eb9c527d41cb0407249f647307c8e64da0521e341e504d0eb
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjCGYQbN/PKwNgerar/Q:T6a+rdOOtEvwDpjLzx

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1952	asih.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4652-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000300000001e982-13.dat	upx
behavioral2/memory/4652-19-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1952-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000300000001e982-16.dat	upx
behavioral2/files/0x000300000001e982-15.dat	upx
behavioral2/memory/1952-27-0x0000000000500000-0x0000000000510000-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 4652 wrote to memory of 1952	4652	2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe	17
PID 4652 wrote to memory of 1952	4652	2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe	17
PID 4652 wrote to memory of 1952	4652	2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe	17

C:\Users\Admin\AppData\Local\Temp\2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_f017d04002d0109f574bd031dded5c97_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1952

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
35KB

MD5
552abe609261224a18881afba25296a2

SHA1
e4c47d30432cf3c880d8274c8f0325ba3a0adf48

SHA256
0858128b146007436fa2964b99f1cd247ecba67ebf69c3a13725e3f52782df32

SHA512
b062fbd0d25917e339e7ab192662a7ab2274d311b10ef2df462839caa8f4f61018082874ba41e8a9e1997883a9cd9b481b942e74e41fa12f5355b3502070d46e

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

Filesize
116KB

MD5
a4f50ad265d42e886c89e1e78c4d5a73

SHA1
56cc4ae40b4162dd6ce1653f1f9e98baf5858953

SHA256
321d925a3331603e975c3a5bce00dc11dd19e908f6d1418b69a5cbe5d88f43eb

SHA512
d0fe05a87d381e7ca8cca498c16c0694fce563239cb48da6d7b73aa585007885fed6a089efb270c2c1e6864993fd296d69a56d62ea397fa5cdb4f7ea0166b9f6

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

Filesize
46KB

MD5
56aa742f6675de9ce964f98aa6b2a3ac

SHA1
27eda32a6ebb1a82183e762c83b285c8ad3aecbb

SHA256
d5b2c45ff52e8aa7efcd7d01148c4a20724d0e3c916b8f94c59bc1e5ff39da6b

SHA512
c4f32e1b6dc1007720664e64f13c336b99b19ea12024a8fffe6c859131cbfedf5d589ccac1a2ef47b28576ad0ce0f16d26d74420e7468196840b0c3f1ca13e8a

Download Submit
memory/1952-24-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1952-20-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1952-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1952-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4652-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4652-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4652-3-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/4652-2-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4652-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download