fdbbda0fb2a69cf209a9386a1a9a0ac8f616ffb8d6f42053bc4a32714e90ef11

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-04-2024 22:32

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General

Target

2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe
Size

63KB
MD5

61cfe6e4b4100318bc7b63453eee5222
SHA1

b7eba4ab5520d30a07e705b022a4dc9ddb52b9d8
SHA256

fdbbda0fb2a69cf209a9386a1a9a0ac8f616ffb8d6f42053bc4a32714e90ef11
SHA512

e321bc87edcfa8dc9bd403f16bf007512f6e6fafc36d3b3282bce3185d3d19cf705c3e567a63107fa15a16c73f32f675c830f951fade63bc135d19b2b9955334
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTIk:TCjsIOtEvwDpj5HE/OUHnSMG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2892-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2892-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2944 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe

pid process

2892 2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2944	misid.exe

pid	process
2892	2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe

description	pid	process	target process
PID 2892 wrote to memory of 2944	2892	2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe	misid.exe
PID 2892 wrote to memory of 2944	2892	2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe	misid.exe
PID 2892 wrote to memory of 2944	2892	2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe	misid.exe
PID 2892 wrote to memory of 2944	2892	2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_61cfe6e4b4100318bc7b63453eee5222_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2944

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
63KB

MD5
c782ab90a9396376006d5ade8cafef1a

SHA1
8cb69284b73aa98821a890c7a5876fae3660c1cb

SHA256
c98f8221289a57cab148ea7cb629e0c31ff4d78970825f1a33a0d2dbb9145a9e

SHA512
00e42a490f8160b933ffb39a5e703afd6e9e6c7d653e2ed11b668e1d1502111d3926c4faa78bcb362e331e89de0fbfb18fcd6e59734d1d5c9e2ba3d7dd2e78cb

Download Submit
memory/2892-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2892-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2892-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2892-3-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2892-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2944-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2944-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2944-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download