cc1e38c215cd308e6e713d1ad7d68da1761219999abb6d7347d7249cd6433367

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 08:17

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General

Target

2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe
Size

55KB
MD5

e4755763dffe2e992ecbf7ddd7fb025a
SHA1

aa4a503731a3dd336f5d32e201770638ae9ca729
SHA256

cc1e38c215cd308e6e713d1ad7d68da1761219999abb6d7347d7249cd6433367
SHA512

b931198bd7df48bb75817dbc14f5f4a33a358dd6eb1f083309b86f612450ef26f8d9a109817b7c60311ee9f43dfc639c17905144804f49a775220bcd7ea183e4
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7Wwfep:6j+1NMOtEvwDpjr8oxEqp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014a5b-11.dat	CryptoLocker_rule2
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2196-14-0x00000000006A0000-0x00000000006AF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1968-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1968-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014a5b-11.dat	CryptoLocker_set1
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1968-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1968-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000014a5b-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1968-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1968-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1968	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_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 2196 wrote to memory of 1968	2196	2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe	28
PID 2196 wrote to memory of 1968	2196	2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe	28
PID 2196 wrote to memory of 1968	2196	2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe	28
PID 2196 wrote to memory of 1968	2196	2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_e4755763dffe2e992ecbf7ddd7fb025a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1968

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
55KB

MD5
79f1ede8bb9f0065c24371a77e7bac26

SHA1
921049370b8ceb5255afdec8d9e881acc0f60431

SHA256
d3c79e9ecb892fb78960cf36bf43bcfb47995fa9df80bb3b2807377611b3a0ff

SHA512
63b515c3467f452d3a8cd2c50757e833e9380dbc9bcbd3060df1fb705e41aa017c2692c2c5a3b9b973981a6b8ec10ce4f4b851e55de3c66c9e42077e8801dbb2

Download Submit
memory/1968-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1968-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1968-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2196-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2196-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2196-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2196-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2196-14-0x00000000006A0000-0x00000000006AF000-memory.dmp

Filesize
60KB

Download