e8705c2bbea7e5b35259da2b9211edc5199ad9d9bbb5d37aea92e7d27ff39fba

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 00:34

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General

Target

2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe
Size

38KB
MD5

8c7d5fa3aaa256b18bdc4a872bdd16df
SHA1

742e29c429aefde6d61d05a967837edf9c17051f
SHA256

e8705c2bbea7e5b35259da2b9211edc5199ad9d9bbb5d37aea92e7d27ff39fba
SHA512

0c17b58510f16948d420665134e5d750dbfb2cca149bbe5e9331f35267590ed3e745701f86338c44514a7002639100b8c0e5c5634bb3bba431d2b25b562cfbd4
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAZ+mX:vj+jsMQMOtEvwDpj5HcSYP5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012339-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012339-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3036	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 3036	2292	2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe	28
PID 2292 wrote to memory of 3036	2292	2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe	28
PID 2292 wrote to memory of 3036	2292	2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe	28
PID 2292 wrote to memory of 3036	2292	2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
38KB

MD5
edc43340da6a5c56e45ed1e9c014c086

SHA1
0b721657812be1d5b8635e8800dda598052df384

SHA256
18b5ccd58000a6a11be3bce7366534a5916e56eb7ec58f1e0aa2e2e0e91b0362

SHA512
b8b885167aa028d1160d45e9aa9bd2d000f9c8e79623db4a29bf3a8b526cf16faa73a1e2325a5bdd315d7792bab31db6d9fd06d416d7bb2a9dc91c6406e72cad

Download Submit
memory/2292-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2292-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3036-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3036-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download