83d04e3ac2a116805cee01f0882b7745a94d11d27a1041d80db1e40ae6f54b9e

Analysis

max time kernel
56s
max time network
57s
platform
windows10_x64
resource
win10v200430
submitted
31-05-2020 03:14

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General

Target

321.exe
Size

1.1MB
MD5

621368f070a43b2b353275cc2c1d2a85
SHA1

5b771da14373fd6fabde3ee3055717040929853d
SHA256

83d04e3ac2a116805cee01f0882b7745a94d11d27a1041d80db1e40ae6f54b9e
SHA512

d1174e670b403e618e5f5b898164bec4f818b58a1733ce9a93b61fd1593f67448660fbc13335e42779c037ea24d9ea4cabfdc9d29f87ff004c489ba93136aea1

Score

7^/10

spyware

Malware Config

Signatures

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

321.exe

description	pid	process	target process
PID 3824 wrote to memory of 520	3824	321.exe	RegAsm.exe
PID 3824 wrote to memory of 520	3824	321.exe	RegAsm.exe
PID 3824 wrote to memory of 520	3824	321.exe	RegAsm.exe
PID 3824 wrote to memory of 520	3824	321.exe	RegAsm.exe
PID 3824 wrote to memory of 520	3824	321.exe	RegAsm.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

321.exe

pid process

3824 321.exe
3824 321.exe
3824 321.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

321.exe

pid process

3824 321.exe
3824 321.exe
3824 321.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

321.exe

description pid process target process

PID 3824 set thread context of 520 3824 321.exe RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 520 RegAsm.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

RegAsm.exe

pid process

520 RegAsm.exe
520 RegAsm.exe
520 RegAsm.exe
520 RegAsm.exe
520 RegAsm.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
3824	321.exe
3824	321.exe
3824	321.exe

pid	process
3824	321.exe
3824	321.exe
3824	321.exe

description	pid	process	target process
PID 3824 set thread context of 520	3824	321.exe	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	520	RegAsm.exe

pid	process
520	RegAsm.exe
520	RegAsm.exe
520	RegAsm.exe
520	RegAsm.exe
520	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\321.exe
"C:\Users\Admin\AppData\Local\Temp\321.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetThreadContext
PID:3824

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Web Service

T1102

Impact

Replay Monitor

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Downloads

memory/520-0-0x0000000000560000-0x0000000000572000-memory.dmp

Filesize
72KB

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