2dbca698e596b7dc30920b85c93d996644fa66beec623ea010091950845d692a

Analysis

max time kernel
143s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 02:26

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General

Target

2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe
Size

79KB
MD5

a7c2ac249e3f6ea0f2c4b4d578d4ceb6
SHA1

d8794fa04e22b043a4402907019418e2b8f3e0a4
SHA256

2dbca698e596b7dc30920b85c93d996644fa66beec623ea010091950845d692a
SHA512

d599fa3e9af7bde6d0bf504189d5d4964ebeec96c7044dfb215b5207228917794329c936bb75772485ace1c6cd5de3a9550a4c4e6413a67ad926bd50e158c975
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktNG:X6a+SOtEvwDpjBZYvQd21

Score

7^/10

discovery

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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	asih.exe

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	2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_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 3876 wrote to memory of 3980	3876	2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe	87
PID 3876 wrote to memory of 3980	3876	2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe	87
PID 3876 wrote to memory of 3980	3876	2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-27_a7c2ac249e3f6ea0f2c4b4d578d4ceb6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3876
- 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:3980

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
79KB

MD5
bc2a7a5158a15c5eed5ae59b08f33e8c

SHA1
01d2ab177ec512645858c7cf0e6207079e49f420

SHA256
990587d2f68d569332f886b806748fd8c9dc779a3c07c129bd450b2df885ebe3

SHA512
e5969a76d6565c9121a1656b6b0f62620ea6129ba43f1858c7890225f45d2cf4724e5583b0aa53a71310683cf47eebd808c1f571df5368eb6ea0f92f1e7cf2e6

Download Submit
memory/3876-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3876-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3876-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3980-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3980-23-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download