isrstealer | b5d32c93e9a815f775489aa2b0ab1f86d45821df344916237746557062d7e8fb

General

Target

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe
Size

156KB
MD5

c1cfb778cbfe135b6fb0d2b6b9116b38
SHA1

f90af1a915f603a6acc40c18a5d9e8e6eef8d015
SHA256

b5d32c93e9a815f775489aa2b0ab1f86d45821df344916237746557062d7e8fb
SHA512

8ca72c995233c5c14eb9d1b6d6b1b70f72f03acbfb578743b0da8bce03b36d0d2d7e005feefb2fffd55f803e41f9e17b5be8ccc5a333a34d426545fbb6443b0a
SSDEEP

3072:+rHi7npAaojNu3LTEj+XaUC3lgosmm8O3J7We5FaOVdD4uhepQ:38jCLT0Rr3+onm/39PRHMuhep

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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5044-2-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/5044-4-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/5044-7-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/5044-9-0x0000000000400000-0x0000000000414000-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:

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe

description	pid	process	target process
PID 3192 set thread context of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_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:

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exec1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

pid	process
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exec1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

pid process

3192 c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe
5044 c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

pid	process
3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe
5044	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe

description	pid	process	target process
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
PID 3192 wrote to memory of 5044	3192	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe	c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE

C:\Users\Admin\AppData\Local\Temp\c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Users\Admin\AppData\Local\Temp\c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE
  "C:\Users\Admin\AppData\Local\Temp\c1cfb778cbfe135b6fb0d2b6b9116b38_JaffaCakes118.EXE"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:5044

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/5044-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads