8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6

General

Target

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe
Size

182KB
MD5

fffdd134d751be12101103ffe3498666
SHA1

b010f97b315fd21c22172c982f35fb506d2ce0c9
SHA256

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6
SHA512

fa763ae118ec25dfa8bd0785043f46a82e12a321fffea3b9f32f02f5f5b0262ec2a6d519737a127802ded5f3490dedef4874434f90d9beed9e04b6541821f1b0

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/1920-57-0x0000000000780000-0x000000000079E000-memory.dmp	rezer0

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

Processes:

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe

description	pid	process	target process
PID 1920 set thread context of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe

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

2020 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe

pid process

1920 8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe

pid	process
2020	schtasks.exe

pid	process
1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exeMSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe
Token: SeDebugPrivilege	976	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe

description	pid	process	target process
PID 1920 wrote to memory of 2020	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	schtasks.exe
PID 1920 wrote to memory of 2020	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	schtasks.exe
PID 1920 wrote to memory of 2020	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	schtasks.exe
PID 1920 wrote to memory of 2020	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	schtasks.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe
PID 1920 wrote to memory of 976	1920	8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe
"C:\Users\Admin\AppData\Local\Temp\8854e55c47b161a9a34bbd04b9d50c0d7001437e3a9bbea2ab4a07bf9821fdf6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1920

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\olFqOLd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2186.tmp"
2⤵
- Creates scheduled task(s)
PID:2020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:976

Network

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

Web Service

1

T1102

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2186.tmp
Filesize
1KB

MD5
f65a75b64b8c1379f3fbd79858b8f489

SHA1
29dadc86738e337e366d3466fde58e17cf9b637b

SHA256
e964a0d8606440e4aac70d79e7b35fd2148ea409b04690f8c77f0e8b2123cdf9

SHA512
94569133073ec4d9039fba1118fc5f7ba223c0ab4d4563b6e9333ab2a118e33fc4082e50e40ad4f007c46cb6cb6415f4fbd431cca6e4b9204e41c44855eda2b9

Download Submit
memory/976-64-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-70-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-71-0x0000000000390000-0x00000000003BA000-memory.dmp

Filesize
168KB

Download
memory/976-65-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-68-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-60-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-61-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-63-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/976-66-0x000000000041102E-mapping.dmp

Download
memory/1920-54-0x0000000000FA0000-0x0000000000FD4000-memory.dmp

Filesize
208KB

Download
memory/1920-56-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/1920-55-0x0000000075F61000-0x0000000075F63000-memory.dmp

Filesize
8KB

Download
memory/1920-57-0x0000000000780000-0x000000000079E000-memory.dmp

Filesize
120KB

Download
memory/2020-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads