5845ce79fcd1bbe6ed76bbff18e2f3bb98a7bd82011cf960d5cc21b69651e582

General

Target

PO 450400- 13720.exe
Size

1.8MB
MD5

5a6d7f9876c36b2270fe5e99b096f1a4
SHA1

2f458c4ed1d1edf2697bf7be60dc71a8ced883e9
SHA256

e0cea593cef95fc3438ec707ef6d293c3189c3a3144a389f790cccfaec770759
SHA512

a683f3ba4d84d129ffc71a8a6b7136328d15c859a943b57ecec9ce21aff998f68475b5c020bdedc82c488b57861345e703f0bb4ce6bde5cf23de805716ae610d

Score

9^/10

rezer0

Malware Config

Signatures

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/824-57-0x0000000005DE0000-0x0000000005F46000-memory.dmp	rezer0

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

672 schtasks.exe

pid	process
672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

PO 450400- 13720.exe

pid	process
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe
824	PO 450400- 13720.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO 450400- 13720.exe

description pid process

Token: SeDebugPrivilege 824 PO 450400- 13720.exe

description	pid	process
Token: SeDebugPrivilege	824	PO 450400- 13720.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

PO 450400- 13720.exe

description	pid	process	target process
PID 824 wrote to memory of 672	824	PO 450400- 13720.exe	schtasks.exe
PID 824 wrote to memory of 672	824	PO 450400- 13720.exe	schtasks.exe
PID 824 wrote to memory of 672	824	PO 450400- 13720.exe	schtasks.exe
PID 824 wrote to memory of 672	824	PO 450400- 13720.exe	schtasks.exe
PID 824 wrote to memory of 940	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 940	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 940	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 940	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1608	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1608	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1608	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1608	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 528	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 528	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 528	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 528	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1604	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1604	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1604	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1604	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1628	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1628	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1628	824	PO 450400- 13720.exe	PO 450400- 13720.exe
PID 824 wrote to memory of 1628	824	PO 450400- 13720.exe	PO 450400- 13720.exe

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pIvyriTVKqho" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB52.tmp"
2⤵
- Creates scheduled task(s)
PID:672

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"{path}"
2⤵
PID:940

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"{path}"
2⤵
PID:1608

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"{path}"
2⤵
PID:528

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"{path}"
2⤵
PID:1604

C:\Users\Admin\AppData\Local\Temp\PO 450400- 13720.exe
"{path}"
2⤵
PID:1628

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDB52.tmp
Filesize
1KB

MD5
827edf20876b31c277b996a27c678683

SHA1
b4c89b7c532792f80bb257e39cb0d2d0743a43ce

SHA256
b6d8fcb5c0bb7485d1bffc7af76169612743a1fa07287ebfdf7ea7ef61253cb6

SHA512
4e6d96d6ad7947b9f3f2fff6aaee9802702af4c7f101248441479678a9ac2dbd61db474f221de676ab365f086911e6cc1e144760a6fd5391f51f5eac40348bc7

Download Submit
memory/672-58-0x0000000000000000-mapping.dmp

Download
memory/824-54-0x0000000000370000-0x000000000054C000-memory.dmp

Filesize
1.9MB

Download
memory/824-55-0x0000000008030000-0x00000000081C6000-memory.dmp

Filesize
1.6MB

Download
memory/824-56-0x0000000000340000-0x0000000000348000-memory.dmp

Filesize
32KB

Download
memory/824-57-0x0000000005DE0000-0x0000000005F46000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads