isrstealer | 225829356ad00c2f1c3e5d8dd4edb61ae446d3b2ec4ed3a9f282715a36a72b7f

General

Target

14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
Size

252KB
MD5

14c6fe940d7a17dd0ca995e5ff6c903d
SHA1

2e21cb731406fb73a06d937f973c86c839ba62d7
SHA256

225829356ad00c2f1c3e5d8dd4edb61ae446d3b2ec4ed3a9f282715a36a72b7f
SHA512

971b0bbc3f7767b460fcfc424352b5f22afe8f95035ba878ba0e803af52c19deb97587c27bcc53cc6cedec57a4ec06d007818c3ec11b3ccdc096a2c9133fa937
SSDEEP

6144:gyWABddKtrqpOsJ2as+/IkgW86+qy9EWL1nhAGEr3nX1l+:gqdstrqQsJb/ccy9EWhhQ1Y

Score

10^/10

isrstealer spyware stealer trojan upx

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

resource	yara_rule
behavioral1/memory/2544-6-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer
behavioral1/memory/2544-10-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer
behavioral1/memory/2544-15-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer
behavioral1/memory/2544-25-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer

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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3068-16-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-18-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-20-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-19-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3068-24-0x0000000000400000-0x0000000000453000-memory.dmp	upx

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2216 set thread context of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2544 set thread context of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2216 wrote to memory of 2544	2216	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	28
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29
PID 2544 wrote to memory of 3068	2544	14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Users\Admin\AppData\Local\Temp\14c6fe940d7a17dd0ca995e5ff6c903d_JaffaCakes118.exe
    /scomma "C:\Users\Admin\AppData\Local\Temp\tmp.ini"
    3⤵
    PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2544-2-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-10-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2544-4-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-25-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3068-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-18-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-20-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-19-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-24-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing