acb527b8e5715ab4b54e03e3cb770eef49d601ce623e971bf00c7cab1fa69242

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 07:56

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General

Target

2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe
Size

58KB
MD5

f68e31334973f3e3c0b06329c6f4e30e
SHA1

98272bed2ded77ec76a118d2f83107be00ebbfb2
SHA256

acb527b8e5715ab4b54e03e3cb770eef49d601ce623e971bf00c7cab1fa69242
SHA512

8557c82d4c6df3693325042e4a1aabd16116ca9eb267473640e7e2470b82da8a6536e64eb3e1bdbc4375188e02f5f4041002dbb05c6875fffad9b8f1cee62ac2
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMYG:TCjsIOtEvwDpj5HE/OUHnSMW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/3140-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000400000001e980-13.dat	CryptoLocker_rule2
behavioral2/memory/3140-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3488-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3488-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/3140-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000400000001e980-13.dat	CryptoLocker_set1
behavioral2/memory/3140-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3488-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3488-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3488	misid.exe

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 3140 wrote to memory of 3488	3140	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	89
PID 3140 wrote to memory of 3488	3140	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	89
PID 3140 wrote to memory of 3488	3140	2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_f68e31334973f3e3c0b06329c6f4e30e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3140
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3488

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\misid.exe

Filesize
59KB

MD5
1ca3d42dce4eed72fc2cf59988727c2a

SHA1
64eeb275ce447bb758678287a245388fa6ba823e

SHA256
78b7dbb1f38226c22b407bfe3799d6740c23d064f3d9ff386466ea022d59cb15

SHA512
2221782727520d5af9dcab9d52cabdd2533e5649f91a124561bca8e669ee2944189125e6ee105d8ac4c3b7f3a112257f35e6a6b199e3eb81bf06b628baaa56a0

Download Submit
memory/3140-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3140-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3140-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3140-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3140-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3488-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3488-20-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3488-23-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3488-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download