406fc3b51d16cdee72eff7a43f7dfd7d2ff220803323484ba3ca74bc000d1b66

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 23:51

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General

Target

2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe
Size

54KB
MD5

c3edfc278fa0ee64c19e765f3820ceec
SHA1

8e98dfc1653f07bd41a4b2511a972472d592b4a1
SHA256

406fc3b51d16cdee72eff7a43f7dfd7d2ff220803323484ba3ca74bc000d1b66
SHA512

63d290da2a1812c324660831a801b80605c8dbff884788cd4aea8d27f2252205d67047fef829cbb9400a5387feed0d96cd2674cdf91e50a8a2570bbe05f2678b
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbqjasqS:bIDOw9a0DwitDZzcTmL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001231c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2616	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_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 2200 wrote to memory of 2616	2200	2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe	28
PID 2200 wrote to memory of 2616	2200	2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe	28
PID 2200 wrote to memory of 2616	2200	2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe	28
PID 2200 wrote to memory of 2616	2200	2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_c3edfc278fa0ee64c19e765f3820ceec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2616

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\lossy.exe

Filesize
54KB

MD5
63529e91d3cf76127354c0b5356761ee

SHA1
ee3dd120e84ae0769188b1976df1f6563e222717

SHA256
4ac251ef3c1f17a93919e1c69107b945d91f616ac6d7f845e89b05a20b77d4c3

SHA512
d786fd34c118db5adcbb4050bdfb48bde932d7d6704049f37fe712288acbd186e13cea29a942c6851241c205782b973f7718768836dbbcdee55884efd91be061

Download Submit
memory/2200-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2200-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2200-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2616-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download