f2fac28c8d946a9976bf74e88797b63ca2f850468c909e707d25fe1ef2eff4a9

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 07:22

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General

Target

2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe
Size

40KB
MD5

1e76fd5fe48f8cd52d5db5163d99f3c7
SHA1

7ecb959ce2924dccd2a75d4d5bc6121f360e4e1a
SHA256

f2fac28c8d946a9976bf74e88797b63ca2f850468c909e707d25fe1ef2eff4a9
SHA512

ab34b7a61b8572e1c8a10c8291d9801a1e20861d7ffe97016188035f2b4b00e1dc94f44b0f12928916bed3cbd0e9ff57a5ad54f64dcd1db6298800d4c2bcea4d
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9FM:qDdFJy3QMOtEvwDpjjWMl7TB

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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2172	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4564-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233f5-13.dat	upx
behavioral2/memory/4564-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2172-27-0x0000000000500000-0x0000000000510000-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 4564 wrote to memory of 2172	4564	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	80
PID 4564 wrote to memory of 2172	4564	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	80
PID 4564 wrote to memory of 2172	4564	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2172

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
40KB

MD5
19c999f1ae662c6cbd09b15cafa9789f

SHA1
940e70f35080e9432fb692ecfc581431fe12eab6

SHA256
025970a5315c1c7c652333328119649cb4b82bfeba8256882723926c8b890b7b

SHA512
2e4a97603f25aefdd360d5bfc79cc03f6d8f0e6fa827e7cf740d323869b135588700a8377addbe62e86c6995b63c122aae3cc8513166835e420ac714c2261c02

Download Submit
memory/2172-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2172-26-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2172-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4564-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4564-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4564-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4564-3-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/4564-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download