3884e4e961a49ecffdf7bf2d0bb4bbbb10e758059a5a2e15f2c66975fd9b004a

Analysis

max time kernel
131s
max time network
143s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
02/08/2023, 18:32

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General

Target

414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe
Size

87KB
MD5

414d9a928f8967c5a91bf5d0133c97ed
SHA1

41e1f407520068f4c8f0e20b4c59a448cf77f4c1
SHA256

3884e4e961a49ecffdf7bf2d0bb4bbbb10e758059a5a2e15f2c66975fd9b004a
SHA512

5f265aadb587cae7d034911ee1ba2c20d71549d1666d0eb8b61a96ff2be7180bf9bafc2db5f6ecd56a5f2861085c8a8788bf8c8fca6213b48765c773bf465b04
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjF:zCsanOtEvwDpjw

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
596	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1372	414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1372-53-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1372-67-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012022-64.dat	upx
behavioral1/memory/596-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012022-68.dat	upx
behavioral1/files/0x0008000000012022-78.dat	upx
behavioral1/memory/596-79-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1372 wrote to memory of 596	1372	414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe	28
PID 1372 wrote to memory of 596	1372	414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe	28
PID 1372 wrote to memory of 596	1372	414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe	28
PID 1372 wrote to memory of 596	1372	414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:596

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
88KB

MD5
9b09a941d82792f72a313668d916654f

SHA1
6034168c3447449f6a4e0da92f96ad3dba56d44e

SHA256
d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

SHA512
810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
88KB

MD5
9b09a941d82792f72a313668d916654f

SHA1
6034168c3447449f6a4e0da92f96ad3dba56d44e

SHA256
d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

SHA512
810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

Download Submit
\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
88KB

MD5
9b09a941d82792f72a313668d916654f

SHA1
6034168c3447449f6a4e0da92f96ad3dba56d44e

SHA256
d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

SHA512
810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

Download Submit
memory/596-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/596-71-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/596-72-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/596-79-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1372-54-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1372-53-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1372-56-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1372-55-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1372-67-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download