cfbaa41d184a0a39aaaa44d9b2b71bee463425407aaa512413f9a67402b69012

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 15:32

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General

Target

2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe
Size

49KB
MD5

58048df9a86bdb437b845510172f2241
SHA1

bc115bee22e5751d6a4ee71ad5e2cbe4a6f6ad29
SHA256

cfbaa41d184a0a39aaaa44d9b2b71bee463425407aaa512413f9a67402b69012
SHA512

b4c88730135dca54e8a9ad1f6e684da3f95a14860e41658dd1489ba75718cf8e3367cd31e9cb81d2ff10599384919e1f5b0c421ab490c1463fbf1836f2886efb
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rva/yYsm06Md:xj+VGMOtEvwDpjy+viHs7pd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_set1
behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a00000001224e-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3012	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	2024-05-29_58048df9a86bdb437b845510172f2241_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 3000 wrote to memory of 3012	3000	2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_58048df9a86bdb437b845510172f2241_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
49KB

MD5
d4ee86412a485fafe9bcbd9b07663f72

SHA1
7fd1285837427ec1057ac5267b1ceb8696eb44d1

SHA256
9aa9ee0c3808205fe6b878433fe8527426f96373e6892fff6dda6ed9abbc5618

SHA512
97b3c27500f404d0de917fee33fdf5ccb798e0c24ce7fa672333942fe2468f6998344efe2d5d0aea356cea5f93cf20dfcac722d0965df4016d73b3b1809d36ca

Download Submit
memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3000-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3000-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3000-12-0x0000000002320000-0x0000000002330000-memory.dmp

Filesize
64KB

Download
memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3012-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download