isrstealer | 91182aa8c9b7e12d17ea9884050f5a384767738f17f7daf7fc73fc67d0e2f702

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 10:04

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General

Target

a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
Size

188KB
MD5

a65a4f6e4d7d1b588fda34ceea52f1ba
SHA1

6bb4bf9303f2dc4c6935b980ca46546a7373866e
SHA256

91182aa8c9b7e12d17ea9884050f5a384767738f17f7daf7fc73fc67d0e2f702
SHA512

9b09fb1be1bddb1f4b894c202740a6a3695665a9f29531a1540264c7c5f81b4c21ba8a33f1883471ef3143ffd0a0f9edcf3055eabcd05eb9de51d8d4060c2245
SSDEEP

3072:j798NWgD6dHpnzKq+JjlXMV+YyhH5CfEgleHQhHZ4P6nveL6LPOdUAH/UDsAsPa9:j798NWgeDz0jRgCHsMlQZRvgtH/UsAs+

Score

10^/10

isrstealer discovery spyware stealer trojan

Malware Config

Signatures

ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
trojan stealer isrstealer

ISR Stealer payload 3 IoCs

resource	yara_rule
behavioral1/memory/2536-5-0x0000000000400000-0x0000000000444000-memory.dmp	family_isrstealer
behavioral1/memory/2536-12-0x0000000000401000-0x0000000000412000-memory.dmp	family_isrstealer
behavioral1/memory/2536-14-0x0000000000400000-0x0000000000444000-memory.dmp	family_isrstealer

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Codepage	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Charset	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2536	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
2536	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
2536	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
2536	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2536	a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a65a4f6e4d7d1b588fda34ceea52f1ba_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2536-0-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2536-1-0x0000000000230000-0x000000000026E000-memory.dmp

Filesize
248KB

Download
memory/2536-2-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2536-5-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2536-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2536-3-0x0000000000230000-0x000000000026E000-memory.dmp

Filesize
248KB

Download
memory/2536-9-0x0000000000280000-0x0000000000282000-memory.dmp

Filesize
8KB

Download
memory/2536-8-0x0000000002520000-0x00000000026A0000-memory.dmp

Filesize
1.5MB

Download
memory/2536-10-0x0000000002710000-0x0000000002820000-memory.dmp

Filesize
1.1MB

Download
memory/2536-12-0x0000000000401000-0x0000000000412000-memory.dmp

Filesize
68KB

Download
memory/2536-11-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2536-13-0x0000000000230000-0x000000000026E000-memory.dmp

Filesize
248KB

Download
memory/2536-15-0x0000000000230000-0x000000000026E000-memory.dmp

Filesize
248KB

Download
memory/2536-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download