isrstealer | 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1 | Triage

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Overview

overview

Static

static

4309cf5fb9...e1.exe

windows7-x64

4309cf5fb9...e1.exe

windows10-2004-x64

Sharing

General

Target

4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1
Size

344KB
Sample

221125-crb7bahc2y
MD5

87a98db6af2353cc097dc85484f97ff8
SHA1

433ef975fd9cffd9ee28d87a01bc963392fb2acb
SHA256

4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1
SHA512

da11af4d38b674249ff2368e4b90dcfd3d4fced3ebcac12a14aa22623f0d789ecdb386083181d5ca14040003854deaf194f167606bcbf6bcf5b2d2b696d7535c
SSDEEP

6144:Toe/JOO2Dmb894GIQzEmYrPUwWCh4ePil1CV+Pk0ylQLPJ2tPHQtmAx:ToecDe894ZQzrYrX5h4eKXCVyiEBwPHs

Score

10^/10

isrstealer collection spyware stealer trojan upx

Static task

static1

Behavioral task

behavioral1

Sample

4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe

Resource

win7-20221111-en

isrstealer collection spyware stealer trojan upx

windows7-x64

11 signatures

150 seconds

Behavioral task

behavioral2

Sample

4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe

Resource

win10v2004-20220812-en

isrstealer spyware stealer trojan upx

windows10-2004-x64

9 signatures

150 seconds

Malware Config

Targets

- Target
  
  4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1
- Size
  
  344KB
- MD5
  
  87a98db6af2353cc097dc85484f97ff8
- SHA1
  
  433ef975fd9cffd9ee28d87a01bc963392fb2acb
- SHA256
  
  4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1
- SHA512
  
  da11af4d38b674249ff2368e4b90dcfd3d4fced3ebcac12a14aa22623f0d789ecdb386083181d5ca14040003854deaf194f167606bcbf6bcf5b2d2b696d7535c
- SSDEEP
  
  6144:Toe/JOO2Dmb894GIQzEmYrPUwWCh4ePil1CV+Pk0ylQLPJ2tPHQtmAx:ToecDe894ZQzrYrX5h4eKXCVyiEBwPHs
Score

10^/10

isrstealer collection spyware stealer trojan upx
- ISR Stealer
  ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
  trojan stealer isrstealer
- ISR Stealer payload
- NirSoft MailPassView
  Password recovery tool for various email clients
- Nirsoft
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses Microsoft Outlook accounts
  collection
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

isrstealercollectionspywarestealertrojanupx

behavioral2

isrstealerspywarestealertrojanupx

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