isrstealer | 89ec5d0f968479ce1cec3e7ed31bf5de92dec4101754a6e27660416bb39d32a5

General

Target

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
Size

224KB
MD5

edeb05bbb74861fae1d5a5825fa6983b
SHA1

1a0e67f666c48d7fecf471132c028b94e7adf9ea
SHA256

89ec5d0f968479ce1cec3e7ed31bf5de92dec4101754a6e27660416bb39d32a5
SHA512

72c223b261e964059507ea8a648d339b9c6e1acb6aa9aad7a82b44e1d0ee7e2449681fe867a362c35cabadf37228b255a13b78baddab087a4331f8a9e46f032c
SSDEEP

3072:d8lk0HvEKFZsDK8auN2Kfji9vCXwFZxzsMaDuyIX4NqIYTDQgfc+lNTFCuNiV39q:dQHvVEKeQBT4N6yIX4N9Y90+ldF/NiV

Score

10^/10

isrstealer bootkit discovery persistence 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/1796-8-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/1796-11-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/1796-16-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/1796-18-0x0000000000400000-0x0000000000414000-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
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

description ioc process

File opened for modification \??\PhysicalDrive0 edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

description	pid	process	target process
PID 4604 set thread context of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 set thread context of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_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 3 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:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

pid	process
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

pid	process
4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
1796	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exeedeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:1796

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4360,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=3860 /prefetch:8
1⤵
PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

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

Replay Monitor

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Downloads

memory/1796-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1796-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1796-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1796-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-3-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3252-5-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3252-14-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4604-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

description	pid	process	target process
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 4604 wrote to memory of 3252	4604	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe
PID 3252 wrote to memory of 1796	3252	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe	edeb05bbb74861fae1d5a5825fa6983b_JaffaCakes118.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads