caad8a341f7bc4f28b033b5985445bae7f852a276f76bbbaa2d7b40dcf44e87d

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 08:27

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General

Target

2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe
Size

40KB
MD5

0c067950fa1e548a69e568ff7a53f532
SHA1

1092733cb9b35e18cc5a5a3630505a4ba0bf7a62
SHA256

caad8a341f7bc4f28b033b5985445bae7f852a276f76bbbaa2d7b40dcf44e87d
SHA512

52bf3f999ef4c12423baf7eeb5509d96e848a6877797eabb2c8038ab5a19f77a11fc7fc3d7bab75b40a24fce3359a3c3ccae3b4692d015fca98a0427afbba7f4
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFR19T:m5nkFNMOtEvwDpjG8hhX3B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/1244-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00090000000122be-11.dat	CryptoLocker_rule2
behavioral1/memory/1244-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1244-14-0x0000000001D60000-0x0000000001D6E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2904-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2904-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1244-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1244-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2904-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2904-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1244-1-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x00090000000122be-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1244-15-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2904-17-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2904-27-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2904	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1244	2024-02-22_0c067950fa1e548a69e568ff7a53f532_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 1244 wrote to memory of 2904	1244	2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe	28
PID 1244 wrote to memory of 2904	1244	2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe	28
PID 1244 wrote to memory of 2904	1244	2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe	28
PID 1244 wrote to memory of 2904	1244	2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_0c067950fa1e548a69e568ff7a53f532_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2904

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
40KB

MD5
74d8316f798cdd6dcdd2d9e6776c53b9

SHA1
64fa883be8e746778f35fa8239f067ee0c2f4d23

SHA256
9e9ac878c5a7362a2d435ff2b0e0af885dd236edda26ef7b34932bf81652883a

SHA512
16f546c4e19169496617a47e8b6e172678ce252343edf982a720bd0b9a2b3e6a7690564c6d2f766d36667523bd9e5d3a3b12cc1d898d5a85be3690cb493ce3ab

Download Submit
memory/1244-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1244-2-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1244-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1244-3-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1244-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1244-14-0x0000000001D60000-0x0000000001D6E000-memory.dmp

Filesize
56KB

Download
memory/2904-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2904-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2904-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2904-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download