isrstealer | f2e92b84166c84b2a09852e1d0240af405bd636c97d523277b7e0ffe79db5d3d

General

Target

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
Size

104KB
MD5

edce79646c95a9195091d4faad7d566d
SHA1

39a621151218df86577d9a6b9b43649166c72e72
SHA256

f2e92b84166c84b2a09852e1d0240af405bd636c97d523277b7e0ffe79db5d3d
SHA512

d27cec9b0802320055ab596ea7798401a474b48df3fa300b542e270121c8b4b5528b767317b495efce303d2d00ffbe8e1faa955049489ea0f89b8a1ab461adf8
SSDEEP

1536:D6QCxZyzT81RL0Q8toN4TOvfaOiGLLZOiniREo0ORbtkFBJYSGHs+gappADR:DFCbB1RL0DEaOiG/Zq50ubOlGHs+gaYd

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

Processes:

resource	yara_rule
behavioral1/memory/2092-4-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2092-10-0x0000000000400000-0x0000000000414000-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

Processes:

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

description	pid	process	target process
PID 2172 set thread context of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

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

Processes:

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exeedce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

pid	process
2092	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
2092	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
2092	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
2092	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exeedce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

pid process

2172 edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
2092 edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

pid	process
2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
2092	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

description	pid	process	target process
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
PID 2172 wrote to memory of 2092	2172	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe	edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\edce79646c95a9195091d4faad7d566d_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2092-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2092-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2172-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2172-3-0x0000000000250000-0x0000000000259000-memory.dmp

Filesize
36KB

Download
memory/2172-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads