isrstealer | abfb213c4a89239f368470b588043b694fa7da59cad09a3be81031b0fd3f3acc

Analysis

max time kernel
136s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 03:56

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General

Target

76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
Size

50KB
MD5

76f6ba1907225ad91884811e48dbd8d5
SHA1

07bd13a930ae44ad1277aad1bf30479ad95e9e34
SHA256

abfb213c4a89239f368470b588043b694fa7da59cad09a3be81031b0fd3f3acc
SHA512

3e473a3204d8c41e57f55a82ec56bb1bfb24971634c5575e71c70f1be88302c8dfc15143491a3445db38f7b780bd978c71847561124e6ba64e569b0ae4ac7770
SSDEEP

768:pH+0GGDyxLQBruIKWcC+wR5TV4UFo53Gt5KnhuKmSsKjtAh8tNIt2YqiTVYgPl4:BhoLQoIKdO4UY3GtUnUCsKJASG3JTVv4

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
behavioral2/memory/4460-3-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/4460-6-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/4460-10-0x0000000000400000-0x0000000000414000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85

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 2 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	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4460	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85
PID 1752 wrote to memory of 4460	1752	76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\76f6ba1907225ad91884811e48dbd8d5_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4460

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

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Downloads

memory/1752-0-0x0000000074D52000-0x0000000074D53000-memory.dmp

Filesize
4KB

Download
memory/1752-1-0x0000000074D50000-0x0000000075301000-memory.dmp

Filesize
5.7MB

Download
memory/1752-2-0x0000000074D50000-0x0000000075301000-memory.dmp

Filesize
5.7MB

Download
memory/1752-8-0x0000000074D50000-0x0000000075301000-memory.dmp

Filesize
5.7MB

Download
memory/4460-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4460-6-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4460-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download