d7b11c26e3400db3d74f9b62e5be6673a418999763a000c29f9b808dc9cebbc6

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 11:57

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General

Target

2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe
Size

47KB
MD5

717c6a2396c292ed63b2bd0cd3e3b6c1
SHA1

5fc5ebdd015ac6039d84b8c80cba98160f6ee77f
SHA256

d7b11c26e3400db3d74f9b62e5be6673a418999763a000c29f9b808dc9cebbc6
SHA512

39842bc1fd0f7c9b8712ea1b1577e65ab2e31e89e5c1c7bb3ac1e1350a10b63b387edc4fbfd359f862c75d944041991b5c64b0faa3e30eda591885b506327835
SSDEEP

384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0G/7Ioqv3:XS5nQJ24LR1bytOOtEvwDpjNbP/Moqv3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1972-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012280-11.dat	CryptoLocker_rule2
behavioral1/memory/1972-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2132-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2132-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1972-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2132-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2132-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1972-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012280-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1972-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2132-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2132-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2132	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1972	2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_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 1972 wrote to memory of 2132	1972	2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe	28
PID 1972 wrote to memory of 2132	1972	2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe	28
PID 1972 wrote to memory of 2132	1972	2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe	28
PID 1972 wrote to memory of 2132	1972	2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_717c6a2396c292ed63b2bd0cd3e3b6c1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2132

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
47KB

MD5
a46bf0432978a27adcc406c80714f70b

SHA1
1901c3c80d727faa6a0355ebf70a6e274fd0f76f

SHA256
6c18e7ec8cebc2c99f14908c727815c73c5b1579622ee032a1e180030d058ebe

SHA512
895ec03271f18a5723bdbe0695497660657c76fca91377eea92b41dfffdca2aace11eb81b208a038fd5937ed174962e9e43c548072139d90428d6f2c50d0898c

Download Submit
memory/1972-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1972-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1972-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1972-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1972-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2132-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2132-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2132-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2132-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download