5f3ca0d00c8ebeb870549e2b321ac9bd9cc68acf8a569276b2c25fda459e8f28

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 19:59

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General

Target

2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe
Size

4.5MB
MD5

fd760cb3834dd75ba4833357b3be9624
SHA1

f7dc45e22a083219a1d1c32808cd8a028b0a819d
SHA256

5f3ca0d00c8ebeb870549e2b321ac9bd9cc68acf8a569276b2c25fda459e8f28
SHA512

e99116b8423baec72235238f0f5700e442b59f568e0ce65e188a08502c8fcaa891e72151515bdd23e18646ee88dde916277493af80811b7cf7af14edebc71259
SSDEEP

98304:g/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTU:g/ZFIjBzF/ZFIjBzPEUusU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detects executables built or packed with MPress PE compressor 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1688	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1288	2024-02-28_fd760cb3834dd75ba4833357b3be9624_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 1288 wrote to memory of 1688	1288	2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe	28
PID 1288 wrote to memory of 1688	1288	2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe	28
PID 1288 wrote to memory of 1688	1288	2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe	28
PID 1288 wrote to memory of 1688	1288	2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_fd760cb3834dd75ba4833357b3be9624_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1688

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\hasfj.exe

Filesize
4.5MB

MD5
0aad79690ada6f78b4fc42b014eaf503

SHA1
b0c1b846691fd4f075efa292f473ff243e981845

SHA256
f0fa4f6dd32481689e8002eb0330c78e85b908c8511f0e04aa0da852c7ad220b

SHA512
ac5efc4879b7bdea62c9ce9a096e77ba4590dd1b0fafa17b7a894947b84f284a6c5ae93ceb805358eaa403eba068c7946557e45921458ce8dc91f55730ad5b9a

Download Submit
memory/1288-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/1288-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1288-8-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1688-15-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1688-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download