563b1de1ef018ad7d06c406f237aecd0f2989cc426f5060c7a7d5c364f1d722d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 03:57

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General

Target

2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe
Size

61KB
MD5

ad37a7c0ec52f914812659a0e2553f26
SHA1

0621aeea94ce393b26d20fd401414c3fc33dd9f0
SHA256

563b1de1ef018ad7d06c406f237aecd0f2989cc426f5060c7a7d5c364f1d722d
SHA512

f12b76ac58a9c3c66d63bdc691ae3e0818713a66fdc71d0b690be4cad2a1c19079fda2558a9744ed3fd7c1aa4820e8c334968f3398e2a32b00194c19dd50e07b
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhx:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhx

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3928	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5112-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b7e-13.dat	upx
behavioral2/memory/5112-24-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3928-26-0x0000000000500000-0x0000000000510000-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	2024-10-12_ad37a7c0ec52f914812659a0e2553f26_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 5112 wrote to memory of 3928	5112	2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe	84
PID 5112 wrote to memory of 3928	5112	2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe	84
PID 5112 wrote to memory of 3928	5112	2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_ad37a7c0ec52f914812659a0e2553f26_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- 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:3928

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\asih.exe

Filesize
61KB

MD5
b21ab2d05ca550c5548f4662c450043a

SHA1
8366caf2046a29a92ad0d884b9d97fa77fdb5d7f

SHA256
6c3a25d10d3fb76a6f49f29ba4b77c6e4bc8ed02fd8edd67ada8a13afde97aa6

SHA512
4575e0fa09e836295d693923247876e6b3335803ab2f70cf37f5125863e8eaf6f8399a36a496b91fd1713700602f968da01d9babe47a15b28d94aae80b04aed9

Download Submit
memory/3928-18-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/3928-25-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/3928-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5112-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5112-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/5112-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/5112-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/5112-24-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download