6ef977082af9a69bb0bbe3e7beb2c6d822eb12c43ca1c1d13f9d6d3b48abb647

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 07:32

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General

Target

2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe
Size

47KB
MD5

3e762df5e92d2b5d08e2cc4378cec1da
SHA1

8307815f1efccc4fb6e07d2677f10f45c3917406
SHA256

6ef977082af9a69bb0bbe3e7beb2c6d822eb12c43ca1c1d13f9d6d3b48abb647
SHA512

0c20d47ba19eeb9ef0cccc31df3dfaca6218c6d48757336c128eebb95f50a13ed025b0774b0b4dbc3cdad7cfa9e773a1a9dad65118069118147e9fe697691ab0
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRhAX:xj+VGMOtEvwDpjy+TRhQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015ca5-11.dat	CryptoLocker_rule2
behavioral1/memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2384-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000015ca5-11.dat	CryptoLocker_set1
behavioral1/memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2384-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000015ca5-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2384-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2384	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_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 2384	2196	2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe	28
PID 2196 wrote to memory of 2384	2196	2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe	28
PID 2196 wrote to memory of 2384	2196	2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe	28
PID 2196 wrote to memory of 2384	2196	2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_3e762df5e92d2b5d08e2cc4378cec1da_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:2384

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

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Downloads

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

Filesize
47KB

MD5
509e2fef86abb135f4feff2206363ef2

SHA1
8362353559765a335228428a8171227152537cc7

SHA256
11a25c0390cde1039829769c7f4d9bf98a56af4dc92b65fab1f8743e33b19486

SHA512
30b2e6f854bfa4b38aa893c89924609b31adddfc5967561ada1bfb704ef7624beeacf7cd6b35e26cd6171c5f2cb53a85b4a756adc7d1a226ac3b7f4a55c6740f

Download Submit
memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2196-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2196-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2196-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2384-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2384-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download