bd880523a26f10cd302602a77e6609fd8fd5936a2933498e7066df805a4b10d5

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 01:07

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General

Target

2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe
Size

63KB
MD5

48b2bb802013839d2752140fc8a93d7e
SHA1

3e5948f9a91f4d479ea5687ea8f795b0291fcdc4
SHA256

bd880523a26f10cd302602a77e6609fd8fd5936a2933498e7066df805a4b10d5
SHA512

3935dc15afab3c815d28ed914d3efbcf3e94ec34d11b3934e2d9edbdee7a0c2f816490664a2901b635571f145e8768cc7262e6ac344f143dfed6db897a78ec20
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTIn:TCjsIOtEvwDpj5HE/OUHnSMp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2252-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2252-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012253-11.dat	CryptoLocker_rule2
behavioral1/memory/2748-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2748-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2252-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2252-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012253-11.dat	CryptoLocker_set1
behavioral1/memory/2748-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2748-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2252	2024-04-15_48b2bb802013839d2752140fc8a93d7e_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 2252 wrote to memory of 2748	2252	2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_48b2bb802013839d2752140fc8a93d7e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
63KB

MD5
1b92021c4d35cce706007dc6a90f44e8

SHA1
1dadec36cdc046224b79bad3b0195b11eb8d2bf8

SHA256
72f8f825873d36180ca2212e241e374be2dcc1bd56154b077c98db12f23d006c

SHA512
fefb0c8c7292c747ac5b09a60e16765dc7fadb39b21f277c117b8860d2fb8bf1d8738f7e37bdafc8686b25ac467ac1f6b595c05d9e07541921ea5655cd017f45

Download Submit
memory/2252-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2252-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2252-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2252-3-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2252-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2748-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2748-18-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2748-21-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2748-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download