3203eb9cb96014029188d05fb4e81ac6db1391fb0a0d8c9262a7ba76571d1e86

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
27/03/2024, 16:26

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General

Target

2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe
Size

78KB
MD5

212790e50cbea0610a27abe72ded886e
SHA1

1767d2817ffdfe6771f943182f105e1add8576c5
SHA256

3203eb9cb96014029188d05fb4e81ac6db1391fb0a0d8c9262a7ba76571d1e86
SHA512

226d78936d42dcad01a6e52627180cd218012455f3596e8520389301ad2f5ccc73249be403ca14051f255ae672b80ae9c4d08889d660bb8649244e0ab205f189
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf0:vCjsIOtEvwDpj5H9YvQd2w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4132	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	1548	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4132	4936	2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe	88
PID 4936 wrote to memory of 4132	4936	2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe	88
PID 4936 wrote to memory of 4132	4936	2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_212790e50cbea0610a27abe72ded886e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4132

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:3444

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1548

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
78KB

MD5
77630f35eb0b86f25c97b4cb2e327bbf

SHA1
53126b18f0d7336911f5445415b9b02688bb1913

SHA256
d972d4299679489c4e4e37a9a7780188cfb262999076167f091dd955c1599a2d

SHA512
576ae1e9be57074b70a4dce076cd10ab13538dae0a402b8b94e4b59884e3c804d486de265d81c93f9d8b4f534125bda83f235d091f4b4e34e8d4be17ce86839b

Download Submit
memory/1548-24-0x0000015019450000-0x0000015019460000-memory.dmp

Filesize
64KB

Download
memory/1548-40-0x0000015019550000-0x0000015019560000-memory.dmp

Filesize
64KB

Download
memory/1548-56-0x00000150218C0000-0x00000150218C1000-memory.dmp

Filesize
4KB

Download
memory/1548-58-0x00000150218F0000-0x00000150218F1000-memory.dmp

Filesize
4KB

Download
memory/1548-59-0x00000150218F0000-0x00000150218F1000-memory.dmp

Filesize
4KB

Download
memory/1548-60-0x0000015021A00000-0x0000015021A01000-memory.dmp

Filesize
4KB

Download
memory/4132-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4132-20-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4936-0-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4936-1-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4936-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download