isrstealer | 67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619 | Triage

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Overview

overview

Static

static

67a5726287...19.exe

windows7-x64

67a5726287...19.exe

windows10-2004-x64

Sharing

General

Target

67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619
Size

899KB
Sample

221106-l3hmxahbbm
MD5

21754d03fc630d0941e6274fdb3bab17
SHA1

5c8f1db48fcd279769971517061386fb6bdefe78
SHA256

67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619
SHA512

c92c470054fb5967cde5fc1fa1926f057738bc5508f7271af31ac828191213fab12616a136cf5a8ffa272102d17db34b98c51f7cc743fddf33c2da4c5283c412
SSDEEP

12288:kRWNcr8oxnOS90QbJa6QE/rI+D00FsG0B3mgDnDK23nwAklwGgG0rWl6VIE2bSqV:/NBIO0/LIV0KG0BWOnDdn/kl4BrrF2fV

Score

10^/10

isrstealer collection stealer trojan upx

Static task

static1

Behavioral task

behavioral1

Sample

67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619.exe

Resource

win7-20220812-en

isrstealer collection stealer trojan upx

windows7-x64

14 signatures

150 seconds

Behavioral task

behavioral2

Sample

67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619.exe

Resource

win10v2004-20220901-en

isrstealer stealer trojan

windows10-2004-x64

11 signatures

150 seconds

Malware Config

Targets

- Target
  
  67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619
- Size
  
  899KB
- MD5
  
  21754d03fc630d0941e6274fdb3bab17
- SHA1
  
  5c8f1db48fcd279769971517061386fb6bdefe78
- SHA256
  
  67a572628783d938e92197ee95b706633f0c32719109f5bde8622a33e934d619
- SHA512
  
  c92c470054fb5967cde5fc1fa1926f057738bc5508f7271af31ac828191213fab12616a136cf5a8ffa272102d17db34b98c51f7cc743fddf33c2da4c5283c412
- SSDEEP
  
  12288:kRWNcr8oxnOS90QbJa6QE/rI+D00FsG0B3mgDnDK23nwAklwGgG0rWl6VIE2bSqV:/NBIO0/LIV0KG0BWOnDdn/kl4BrrF2fV
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
- Executes dropped EXE
- 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.
- Loads dropped DLL
- 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

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Email Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

isrstealercollectionstealertrojanupx

behavioral2

isrstealerstealertrojan

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