azorult | b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3

Analysis

max time kernel
91s
max time network
94s
platform
windows10_x64
resource
win10
submitted
10-07-2020 12:10

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General

Target

b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
Size

242KB
MD5

62231fa0b731bd0aac1c55bd8ed15898
SHA1

d3dd155f601bb80e417b9b0a6cf294215107af46
SHA256

b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3
SHA512

6539e010a88784c5c6c605038b2edb38c06d060543140e08c405025fd4c825f281e78993309a82dabb26148d5ad5eaf5eb0ea87f9fe95a520cd59d9c508c683c

Score

10^/10

azorult oski discovery infostealer spyware stealer trojan

Malware Config

Extracted

Family

azorult

http://195.245.112.115/index.php

Extracted

Family

oski

raymond.ug

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult
Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
3932	osaz.exe
2004	osaz.exe

Loads dropped DLL 3 IoCs

pid	Process
2004	osaz.exe
2004	osaz.exe
2004	osaz.exe

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

Data from Local System
T1005

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

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4016 set thread context of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 3932 set thread context of 2004	3932	osaz.exe	76

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 1 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	osaz.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2124	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
Token: SeDebugPrivilege	2124	taskkill.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 3932	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	67
PID 4016 wrote to memory of 3932	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	67
PID 4016 wrote to memory of 3932	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	67
PID 4016 wrote to memory of 3796	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	68
PID 4016 wrote to memory of 3796	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	68
PID 4016 wrote to memory of 3796	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	68
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 4016 wrote to memory of 3744	4016	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	69
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 3932 wrote to memory of 2004	3932	osaz.exe	76
PID 2004 wrote to memory of 2676	2004	osaz.exe	77
PID 2004 wrote to memory of 2676	2004	osaz.exe	77
PID 2004 wrote to memory of 2676	2004	osaz.exe	77
PID 2676 wrote to memory of 2124	2676	cmd.exe	79
PID 2676 wrote to memory of 2124	2676	cmd.exe	79
PID 2676 wrote to memory of 2124	2676	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
"C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\osaz.exe
  "C:\Users\Admin\AppData\Local\Temp\osaz.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3932
- - C:\Users\Admin\AppData\Local\Temp\osaz.exe
    "{path}"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:2004
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /pid 2004 & erase C:\Users\Admin\AppData\Local\Temp\osaz.exe & RD /S /Q C:\\ProgramData\\651497815684615\\* & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2676
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /pid 2004
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2124
- C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
  "{path}"
  2⤵
  PID:3796
- C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
  "{path}"
  2⤵
  PID:3744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2004-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2004-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3744-7-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3744-5-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download