isrstealer | 8cc0c19b9a9f5b46ad2dc47537f10c501ded27f4873f818a4f04e062818331d1

Analysis

max time kernel
53s
max time network
69s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04-07-2024 19:09

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General

Target

25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe
Size

104KB
MD5

25ec69412531b4ac0ee8abffe7cfe60a
SHA1

c6b3ffd8a02f8baa15a4f5cf2c2f2b851bd8089f
SHA256

8cc0c19b9a9f5b46ad2dc47537f10c501ded27f4873f818a4f04e062818331d1
SHA512

32d40544d5ca1a44f3239023d38691e17e08581ebe79c906e3bf59380d47298f6bf09860b2ec18eb9bc76ceb63c06e18332fd6a3084dc83f249d7add32f7c526
SSDEEP

3072:aXyehnXQUZZb0x2OfqzIyrg507v7Rl80PcqR:aCehXQUZZb0QOfqV007v7RC0

Score

10^/10

isrstealer 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/4796-5-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/4796-10-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/4796-14-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/4796-15-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

4796 svchost.exe
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:

25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe

description pid process target process

PID 3388 set thread context of 4796 3388 25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe svchost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

svchost.exe

pid process

4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
4796 svchost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 3388 25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

4796 svchost.exe

pid	process
4796	svchost.exe

description	pid	process	target process
PID 3388 set thread context of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe

pid	process
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe
4796	svchost.exe

description	pid	process
Token: SeDebugPrivilege	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe

pid	process
4796	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe

description	pid	process	target process
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe
PID 3388 wrote to memory of 4796	3388	25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\25ec69412531b4ac0ee8abffe7cfe60a_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/3388-0-0x0000000074B52000-0x0000000074B53000-memory.dmp

Filesize
4KB

Download
memory/3388-1-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/3388-2-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/3388-13-0x0000000074B50000-0x0000000075101000-memory.dmp

Filesize
5.7MB

Download
memory/4796-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4796-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4796-14-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4796-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download