9b5762531708d403ade873c446c34677f24dc5ae947480731a10bc5a839b1a7c

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-03-2024 05:37

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General

Target

2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe
Size

61KB
MD5

528c37623e938082c874e137ae4f9559
SHA1

6af49461012dcb36c7a8537c9f907cbe97f0dda4
SHA256

9b5762531708d403ade873c446c34677f24dc5ae947480731a10bc5a839b1a7c
SHA512

dbf148617717e455adda1ab2cb3957d1c350f5028b0e11b7235dfefe9d0a0fa944e049d62e9eb5fff3ad70219a76fa190d932eab520cd4fa88a859568df64454
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMEjT:TCjsIOtEvwDpj5HE/OUHnSMZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2688-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012267-11.dat	CryptoLocker_rule2
behavioral1/memory/2652-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2688-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2688-14-0x0000000001F60000-0x0000000001F6E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2652-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2688-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012267-11.dat	CryptoLocker_set1
behavioral1/memory/2652-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2688-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2652-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2652	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2688	2024-03-11_528c37623e938082c874e137ae4f9559_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 2688 wrote to memory of 2652	2688	2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe	28
PID 2688 wrote to memory of 2652	2688	2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe	28
PID 2688 wrote to memory of 2652	2688	2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe	28
PID 2688 wrote to memory of 2652	2688	2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_528c37623e938082c874e137ae4f9559_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2652

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
61KB

MD5
1fd7d6872f51da0fa57e5d47c0522ed7

SHA1
9270c319fb4a8c014ec49ad6b294c57434693e9f

SHA256
fc312e53baa0f6e797d6aa752cb2844d3f0e0d9d8967891f8ac387b1488e2c80

SHA512
ba1a8f0223256ef2f219030d497f6b4d3643625841119a5d2596cd915c7e762a040240d9be8aea0431b77cf52ec957f8261023ffe20565dd0b5fd582d7d56cdf

Download Submit
memory/2652-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2652-20-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2652-19-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2652-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2688-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2688-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2688-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2688-9-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2688-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2688-14-0x0000000001F60000-0x0000000001F6E000-memory.dmp

Filesize
56KB

Download