286a1fa43b754ab3c77c1038c587eaad7ff2b2a337f33c4f55c76578a57ca6ca

Analysis

max time kernel
0s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09-01-2024 06:44

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General

Target

2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe
Size

91KB
MD5

96b926534e602a9e43aa1e7cc479fef5
SHA1

794d9a4c74d2a7831135d4121f2802ba413b47fa
SHA256

286a1fa43b754ab3c77c1038c587eaad7ff2b2a337f33c4f55c76578a57ca6ca
SHA512

43db692c0697075b7927c80243da07090bbdfe02ad89f7449684952825dec7167c963c195d182f36027095cf38cc1d930bbb1e0d851f85582bd6ae34ec20d6bf
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjx:zCsanOtEvwDpjM

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2032	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2800	2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2800-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2032-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012251-11.dat	upx
behavioral1/memory/2800-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2032-27-0x0000000000500000-0x0000000000510000-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 2800 wrote to memory of 2032	2800	2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe	16
PID 2800 wrote to memory of 2032	2800	2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe	16
PID 2800 wrote to memory of 2032	2800	2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe	16
PID 2800 wrote to memory of 2032	2800	2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
1⤵
- Executes dropped EXE
PID:2032

C:\Users\Admin\AppData\Local\Temp\2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-08_96b926534e602a9e43aa1e7cc479fef5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2800

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

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2032-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2032-18-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2032-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2032-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2800-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2800-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2800-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2800-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2800-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2800-26-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download