isrstealer | 97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303 | Triage

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Overview

overview

Static

static

97ed7939f3...03.exe

windows7-x64

97ed7939f3...03.exe

windows10-2004-x64

Sharing

General

Target

97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303
Size

352KB
Sample

221030-q6r3zadbf4
MD5

92df8946d36b23ccb370f188f3a00870
SHA1

368ad1a5c349f9ab1356a1754cb3a2743a14e865
SHA256

97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303
SHA512

245ccee63efc2c0b51e57f9cea0ae6bc3f849d956796b5237d248a2243ce70f50d5e333a0ec1bdfafa805ce9861d5bbb149e2cdfd50e0d744c7c4d0b3dbc8784
SSDEEP

6144:tnEjTltu6wuisyZDj1T5UAAeGdD6DTzysQt9YgPmG5lXgl7muy:d2tSsmN5UHNI2LjHPmGnXg

Score

10^/10

isrstealer collection stealer trojan upx

Static task

static1

Behavioral task

behavioral1

Sample

97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303.exe

Resource

win7-20220901-en

isrstealer collection stealer trojan upx

windows7-x64

12 signatures

150 seconds

Behavioral task

behavioral2

Sample

97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303.exe

Resource

win10v2004-20220901-en

isrstealer collection stealer trojan upx

windows10-2004-x64

13 signatures

150 seconds

Malware Config

Targets

- Target
  
  97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303
- Size
  
  352KB
- MD5
  
  92df8946d36b23ccb370f188f3a00870
- SHA1
  
  368ad1a5c349f9ab1356a1754cb3a2743a14e865
- SHA256
  
  97ed7939f368f9be51c475d0383079a9e5fbf7b20da3e3274957829356f6d303
- SHA512
  
  245ccee63efc2c0b51e57f9cea0ae6bc3f849d956796b5237d248a2243ce70f50d5e333a0ec1bdfafa805ce9861d5bbb149e2cdfd50e0d744c7c4d0b3dbc8784
- SSDEEP
  
  6144:tnEjTltu6wuisyZDj1T5UAAeGdD6DTzysQt9YgPmG5lXgl7muy:d2tSsmN5UHNI2LjHPmGnXg
Score

10^/10

isrstealer collection 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
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution
- Accesses Microsoft Outlook accounts
  collection
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Scripting

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Scripting

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Email Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

isrstealercollectionstealertrojanupx

behavioral2

isrstealercollectionstealertrojanupx

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