azorult | b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3

Analysis

max time kernel
146s
max time network
91s
platform
windows7_x64
resource
win7v200430
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
1784	osaz.exe
1924	osaz.exe

Loads dropped DLL 7 IoCs

pid	Process
288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
1784	osaz.exe
1924	osaz.exe
1924	osaz.exe
1924	osaz.exe
1924	osaz.exe
1924	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 288 set thread context of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 1784 set thread context of 1924	1784	osaz.exe	30

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
1640	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	taskkill.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 288 wrote to memory of 1784	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	26
PID 288 wrote to memory of 1784	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	26
PID 288 wrote to memory of 1784	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	26
PID 288 wrote to memory of 1784	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	26
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 288 wrote to memory of 520	288	b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe	27
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1784 wrote to memory of 1924	1784	osaz.exe	30
PID 1924 wrote to memory of 1464	1924	osaz.exe	32
PID 1924 wrote to memory of 1464	1924	osaz.exe	32
PID 1924 wrote to memory of 1464	1924	osaz.exe	32
PID 1924 wrote to memory of 1464	1924	osaz.exe	32
PID 1464 wrote to memory of 1640	1464	cmd.exe	34
PID 1464 wrote to memory of 1640	1464	cmd.exe	34
PID 1464 wrote to memory of 1640	1464	cmd.exe	34
PID 1464 wrote to memory of 1640	1464	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
"C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:288
- C:\Users\Admin\AppData\Local\Temp\osaz.exe
  "C:\Users\Admin\AppData\Local\Temp\osaz.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1784
- - 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:1924
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /pid 1924 & erase C:\Users\Admin\AppData\Local\Temp\osaz.exe & RD /S /Q C:\\ProgramData\\461210471157435\\* & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1464
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /pid 1924
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1640
- C:\Users\Admin\AppData\Local\Temp\b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3.exe
  "{path}"
  2⤵
  PID:520

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/520-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/520-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1924-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1924-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads