3abff1298189d27f279d164cfc8ce2aaede0bfa588d49b66ebcaff4287d45931

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/10/2024, 02:43

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General

Target

2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe
Size

28KB
MD5

070d41a327b452e2321a9becb6e2af75
SHA1

c71279ce8487af60b91d4dd5f0ff41cfd9cdbede
SHA256

3abff1298189d27f279d164cfc8ce2aaede0bfa588d49b66ebcaff4287d45931
SHA512

9a2670b558f874e20da7d1d004dfed2b6b89f029264a12cf88e9a48cad7c0f6f1b1669455890279ce98bd988500a41ab4ecacb637d90d4af06d143721a243655
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqy:bFgm5zusFUB2preAr+Ofjg0STX73OBqy

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
668	lossy.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4260-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x000c000000023b8f-13.dat	upx
behavioral2/memory/4260-17-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/668-26-0x0000000008000000-0x000000000800E000-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	2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 668	4260	2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe	86
PID 4260 wrote to memory of 668	4260	2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe	86
PID 4260 wrote to memory of 668	4260	2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_070d41a327b452e2321a9becb6e2af75_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:668

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

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Downloads

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

Filesize
28KB

MD5
bce9e13107958d42be245081802c7219

SHA1
03533b7da1885e04e22bce238fba139ccfc9226b

SHA256
b3c33d51dbb271da115a567f70ecbac03a2574e47c686b0f8ea9f3ea69a8d04d

SHA512
3c67e406497d1173773b48b1370260362e801008f6a2773c3175f1d2af51ca2a6dbeade332c3ec120133eb92d4eb5bf97e4ebaf14aa72d4019be28eba16e462d

Download Submit
memory/668-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/668-26-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4260-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4260-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4260-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4260-3-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4260-17-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download