fc596e96ee8c339af8776730540a9fc1412fee56de2ff51cd2e5c72197491eb7

Analysis

max time kernel
90s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 10:39

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General

Target

2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe
Size

125KB
MD5

c9815d6bb1317790db5016a34debe3c2
SHA1

e143e53a75ae67c53532e531ed3799068c7a8f5c
SHA256

fc596e96ee8c339af8776730540a9fc1412fee56de2ff51cd2e5c72197491eb7
SHA512

6268aafcd96bbff00dd5975b8ec7cbbe0dca3a1d207f12289b4b05927e7ed09e175f94aee72a7a6ae0eecddfd0b0212c7855b1052bed0c63a2e9d595277f1055
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpR/F:vCA9OtEvwDpjX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023210-12.dat	CryptoLocker_rule2
behavioral2/files/0x0007000000023210-14.dat	CryptoLocker_rule2
behavioral2/files/0x0007000000023210-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023210-12.dat	CryptoLocker_set1
behavioral2/files/0x0007000000023210-14.dat	CryptoLocker_set1
behavioral2/files/0x0007000000023210-15.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1912	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 4524 wrote to memory of 1912	4524	2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe	30
PID 4524 wrote to memory of 1912	4524	2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe	30
PID 4524 wrote to memory of 1912	4524	2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_c9815d6bb1317790db5016a34debe3c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1912

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
64KB

MD5
452e05e2f25f6dd5f5790ca7ab44425f

SHA1
05ae6c2a9bcd9c8a8c9ce3ba3b8e1ce16cd3a8e6

SHA256
00b0f4ad617a41e85b6b74d736ca94dce7e37689ab3799240f6f27e8311d1255

SHA512
e38441238f3556a84a16bc0f7a4a646dccecf93e1590c74c4c8b5b3f944dd42a8b75ddc19909afa1088c95a75e8e425958790cb07844bc14134879eaaaf82ade

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
125KB

MD5
68b4750ebfd4c1213b669a291996dce3

SHA1
1354f74f263d9c30366eafb342db1b738116a47a

SHA256
18a2334eb4e0fc74c2384d33c8940f96c1e4c47fc3f5a1df01d95f9b4d588fcd

SHA512
131624890aa5d4f2b6a6a4676d5fd67125c9b44744b6aae117c6e3645e86ea64d83421f095d25dc9aa04a78ca541e407273c24d7f6905f049f3c79db392da976

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
51KB

MD5
79fd3b0c31a977825bb7c543bdd512db

SHA1
a8d1400574cabbecb624ade977ca5b9827d32254

SHA256
7e77c7a5d1e14da403198c512bd96fbe2aae95c99825edb855fec025ad1b9747

SHA512
88bd8f306c9fec0aecdcf7e0b99cff5abde51df04ead0782ac09d7fc11b06e0ce294c90c497a0fa86337af26b22c77e7862fbf1358abba2427b1b9e67efb2818

Download Submit
memory/1912-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1912-23-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4524-0-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4524-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4524-1-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download