isrstealer | 9a203b90ac6e81f7368115e2ef687807c8293c2886c453d4d10bd9cd39344d30

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 21:59

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General

Target

dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
Size

125KB
MD5

dd203810b11db9d714570d7ae5292e2f
SHA1

92b59df3ba9a21568416efe8c6724333f42864e3
SHA256

9a203b90ac6e81f7368115e2ef687807c8293c2886c453d4d10bd9cd39344d30
SHA512

d4768dbbd03c403cff50baa9272eb46a65ed32a29d4681d58e12cad9db75b5598b466042b208904861d7a55ae4a0c65872463d3e240e43fb2279faeaab309a8a
SSDEEP

3072:jwmePjkNoEeF/DKoHGfsm/bvVx+EBpbxdCKGKl8SsO:QjkNXqY/D+qpXQKxsO

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 2 IoCs

resource	yara_rule
behavioral1/memory/2236-1-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2236-5-0x0000000000400000-0x0000000000414000-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 2196 set thread context of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30

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	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2236	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
2236	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
2236	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
2236	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2236	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2236	2196	dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd203810b11db9d714570d7ae5292e2f_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2236

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/2236-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download