isrstealer | 8a0e38e9f142b13b3283e5549c63338906117bf206063c8333b8b8ec484b7857

General

Target

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
Size

134KB
MD5

f374e5b91c3f636ee2df585a4ae92bee
SHA1

173631b1f44a08a288d26c2172d71be16cd177b2
SHA256

8a0e38e9f142b13b3283e5549c63338906117bf206063c8333b8b8ec484b7857
SHA512

cb3688951ce02b45623be3a4804d9d5f333b5522ff2c4c6ed3f9150d318411f4362fd3f43b351599d5f986d4cb9db2da4aacd3225d3b1351fc9d5c3021317588
SSDEEP

3072:TB+jsTizRGMr5TKXDF7TbwX4AvfjzXNRNod:4jstMrNKXBvs4AvrzvGd

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

Processes:

resource	yara_rule
behavioral1/memory/2060-5-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2060-12-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2060-14-0x0000000000400000-0x0000000000414000-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 3 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

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

Processes:

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

description	pid	process	target process
PID 2344 set thread context of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_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:

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exef374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

pid	process
2060	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
2060	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
2060	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
2060	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exef374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

pid process

2344 f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
2060 f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

pid	process
2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
2060	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

description	pid	process	target process
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
PID 2344 wrote to memory of 2060	2344	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe	f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f374e5b91c3f636ee2df585a4ae92bee_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2060-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2060-12-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2060-14-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2344-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2344-4-0x0000000000240000-0x0000000000250000-memory.dmp

Filesize
64KB

Download
memory/2344-9-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads