isrstealer | 559500c657588d8d013fe4276d135a3ff698c943c2b40b03c980f1816501ba5e

General

Target

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
Size

111KB
MD5

d06b8221c01ba5b2d6bf85e3d97571d3
SHA1

81d410406596bee4ea22d8b54e86383728326325
SHA256

559500c657588d8d013fe4276d135a3ff698c943c2b40b03c980f1816501ba5e
SHA512

cc96cadf8ab4c0ca418aa8c6924bbb5cbbbff363f91960d9583c3440353efefef9cfe58574138ab6791939b76fff65c97f7a6d9038ff36745a79dffbed4c88e4
SSDEEP

3072:ycMq6AUQILv/MffUb+rO2qBdgYeTfc5IATo4FMUIoHb:fMrQILsnnO2QGfCMU/Hb

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
behavioral1/memory/2468-8-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2468-4-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2468-13-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2468-14-0x0000000000400000-0x0000000000414000-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 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:

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

description	pid	process	target process
PID 1680 set thread context of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_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:

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exed06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

pid	process
2468	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
2468	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
2468	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
2468	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

pid process

2468 d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

description	pid	process	target process
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
PID 1680 wrote to memory of 2468	1680	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe	d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d06b8221c01ba5b2d6bf85e3d97571d3_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2468

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/2468-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2468-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2468-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2468-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2468-13-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2468-14-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads