isrstealer | 33e595babcf67d43afe50976ab1a20f58c8d737b723fbea915943e89d400e6cb | Triage

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Overview

overview

Static

static

3

JaffaCakes...87.exe

windows7-x64

JaffaCakes...87.exe

windows10-2004-x64

Sharing

General

Target

JaffaCakes118_baeaafc9f3d5c944ee7e39d2103e3c87
Size

969KB
Sample

250207-yrzhhawpgp
MD5

baeaafc9f3d5c944ee7e39d2103e3c87
SHA1

5f2e3c22c8fe2dcfbf8df53ba837cdc0c892f054
SHA256

33e595babcf67d43afe50976ab1a20f58c8d737b723fbea915943e89d400e6cb
SHA512

1b7fae35efd59c1816d50da18eba16ae7d7d014b81c5a773b3a72d03cbc40d8e0a19ae3737f75d595fc4ea5c2c213a42c245c07e0256e1269911823b653654af
SSDEEP

24576:BijCOCdlBNl2HvLxeRNEA/qeRdbfSsfFvEQWQeUoZ7U33SAddBLS:BiGrdlfl2PtsNEA/qe3bKQFvbePOHSAc

Score

10^/10

isrstealer discovery persistence spyware stealer trojan upx

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

JaffaCakes118_baeaafc9f3d5c944ee7e39d2103e3c87.exe

Resource

win7-20240903-en

isrstealer discovery persistence spyware stealer trojan upx

windows7-x64

13 signatures

150 seconds

Behavioral task

behavioral2

Sample

JaffaCakes118_baeaafc9f3d5c944ee7e39d2103e3c87.exe

Resource

win10v2004-20250207-en

isrstealer discovery persistence spyware stealer trojan upx

windows10-2004-x64

14 signatures

150 seconds

Malware Config

Targets

- Target
  
  JaffaCakes118_baeaafc9f3d5c944ee7e39d2103e3c87
- Size
  
  969KB
- MD5
  
  baeaafc9f3d5c944ee7e39d2103e3c87
- SHA1
  
  5f2e3c22c8fe2dcfbf8df53ba837cdc0c892f054
- SHA256
  
  33e595babcf67d43afe50976ab1a20f58c8d737b723fbea915943e89d400e6cb
- SHA512
  
  1b7fae35efd59c1816d50da18eba16ae7d7d014b81c5a773b3a72d03cbc40d8e0a19ae3737f75d595fc4ea5c2c213a42c245c07e0256e1269911823b653654af
- SSDEEP
  
  24576:BijCOCdlBNl2HvLxeRNEA/qeRdbfSsfFvEQWQeUoZ7U33SAddBLS:BiGrdlfl2PtsNEA/qe3bKQFvbePOHSAc
Score

10^/10

isrstealer discovery persistence 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
- Isrstealer family
  isrstealer
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Suspicious use of SetThreadContext
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

System Location Discovery

System Language Discovery

System Network Configuration Discovery

Internet Connection Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

isrstealerdiscoverypersistencespywarestealertrojanupx

behavioral2

isrstealerdiscoverypersistencespywarestealertrojanupx

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