isrstealer | 69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638

Analysis

max time kernel
69s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2022 04:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
Size

1.1MB
MD5

22847661df98734df1dcd5e16647c1e8
SHA1

24f4e51e9b25f788b5877f5aadb8e40e731b45aa
SHA256

69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638
SHA512

7dc54f1653b0b91a065736b01c6cb11be542eeac3acb85ce2216dcf3102c18cba5b79b1137cf138c688f98924cdc06db2457e0f4b00128a3c2fe668269b15f95
SSDEEP

24576:18czc3Ywt8XzNxagaClz720umOUwvAV2POzncSGXdvU4dtZGAj2w7:mSQY0oa1+H2+OVvA8POzcSevU4Pz17

Score

10^/10

isrstealer collection 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

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4956-152-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView
behavioral2/memory/4956-154-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView
behavioral2/memory/4956-156-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/5060-139-0x0000000000400000-0x0000000000454000-memory.dmp	WebBrowserPassView
behavioral2/memory/5060-144-0x0000000000400000-0x0000000000454000-memory.dmp	WebBrowserPassView
behavioral2/memory/5060-155-0x0000000000400000-0x0000000000454000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

resource	yara_rule
behavioral2/memory/5060-139-0x0000000000400000-0x0000000000454000-memory.dmp	Nirsoft
behavioral2/memory/5060-144-0x0000000000400000-0x0000000000454000-memory.dmp	Nirsoft
behavioral2/memory/4992-149-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/4992-153-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/4956-152-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral2/memory/4956-154-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral2/memory/4956-156-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral2/memory/5060-155-0x0000000000400000-0x0000000000454000-memory.dmp	Nirsoft

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4992-142-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4956-146-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4992-149-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4992-147-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4956-151-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4992-153-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4956-152-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4956-154-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4956-156-0x0000000000400000-0x000000000041F000-memory.dmp	upx

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
T1081
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
T1081

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4512 set thread context of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 2796 set thread context of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 set thread context of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 set thread context of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4992	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
4992	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 4512 wrote to memory of 2796	4512	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	80
PID 2796 wrote to memory of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 wrote to memory of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 wrote to memory of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 wrote to memory of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 wrote to memory of 5060	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	81
PID 2796 wrote to memory of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 wrote to memory of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 wrote to memory of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 wrote to memory of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 wrote to memory of 4992	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	82
PID 2796 wrote to memory of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83
PID 2796 wrote to memory of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83
PID 2796 wrote to memory of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83
PID 2796 wrote to memory of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83
PID 2796 wrote to memory of 4956	2796	69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe	83

C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
"C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
  "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
    "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
    3⤵
    PID:5060
- - C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
    "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4992
- - C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe
    "C:\Users\Admin\AppData\Local\Temp\69093df79a821a0acc7beb13eecd0a306a61e1f2fc5646341c0f3dfca9543638.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:4956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\data.dmp

Filesize
54B

MD5
c10dbeca73f8835240e08e4511284b83

SHA1
0032f8f941cc07768189ca6ba32b1beede6b6917

SHA256
0b6b62094048f0a069b4582f837afcb941db51340d0b16d578e8cbe8603a071e

SHA512
34f7ab8b4ab7b4996b82ffc49198103ef245ee7dd5ccfec793a9ee391b9e9bb30bd3916b4ebeaa9c66a4b5ca42f8572418f16dc83d41073bc94389c19916b967

Download Submit
memory/2796-135-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2796-136-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2796-137-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2796-150-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/4956-151-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4956-156-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4956-154-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4956-152-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4956-146-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4992-153-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4992-147-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4992-149-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4992-142-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/5060-144-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5060-139-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5060-155-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download