40b37f68d692be65451668439dbf06b922d96fcdb5eebe119829f60a340a8c06

Analysis

max time kernel
130s
max time network
142s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
06-08-2023 18:22

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General

Target

90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe
Size

88KB
MD5

90f23c0ae33907aa4878b9387b1ba18e
SHA1

9781ac8c3fb4c8338bd2d8eb928017f6bcd93ac8
SHA256

40b37f68d692be65451668439dbf06b922d96fcdb5eebe119829f60a340a8c06
SHA512

43dd4774617473b0eba0775e56492169b33575d0bb1a42981d3ca1cd9ed04e1557c7541109d49585475f418437fb7e5dad565f2e8ebf33ecb40d6a23e1aeda44
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDWB:zCsanOtEvwDpjV

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2520	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012024-65.dat	upx
behavioral1/memory/2220-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2520-72-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012024-68.dat	upx
behavioral1/files/0x0009000000012024-79.dat	upx
behavioral1/memory/2520-81-0x0000000000500000-0x0000000000510000-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 2220 wrote to memory of 2520	2220	90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe	28
PID 2220 wrote to memory of 2520	2220	90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe	28
PID 2220 wrote to memory of 2520	2220	90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe	28
PID 2220 wrote to memory of 2520	2220	90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\90f23c0ae33907aa4878b9387b1ba18e_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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
c50044edd96f77a0b9d759e0eb9fe6fe

SHA1
7011959a3abedeebeb68930b2f9f2af8da05cfc1

SHA256
3ed7f09bca5a8e6a9f864ae096f47ff052724380925446da2163a3fec1d6f975

SHA512
19856faf92facb4bead23e67587c94907d696e4810544883e24b2fe16588062c935e8f7c4144cb3cc1a2a9adb90951f827ef704935662fac0508a54c68db461b

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

Filesize
88KB

MD5
c50044edd96f77a0b9d759e0eb9fe6fe

SHA1
7011959a3abedeebeb68930b2f9f2af8da05cfc1

SHA256
3ed7f09bca5a8e6a9f864ae096f47ff052724380925446da2163a3fec1d6f975

SHA512
19856faf92facb4bead23e67587c94907d696e4810544883e24b2fe16588062c935e8f7c4144cb3cc1a2a9adb90951f827ef704935662fac0508a54c68db461b

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

Filesize
88KB

MD5
c50044edd96f77a0b9d759e0eb9fe6fe

SHA1
7011959a3abedeebeb68930b2f9f2af8da05cfc1

SHA256
3ed7f09bca5a8e6a9f864ae096f47ff052724380925446da2163a3fec1d6f975

SHA512
19856faf92facb4bead23e67587c94907d696e4810544883e24b2fe16588062c935e8f7c4144cb3cc1a2a9adb90951f827ef704935662fac0508a54c68db461b

Download Submit
memory/2220-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-70-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

Filesize
64KB

Download
memory/2220-56-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2220-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-57-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2220-55-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2220-80-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

Filesize
64KB

Download
memory/2520-72-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2520-73-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2520-81-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download