isrstealer | 61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d

General

Target

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
Size

358KB
MD5

2c7c9f734313cad1fd7515e0e39aaaad
SHA1

39a18302a714de9c081ca7843b9438cd2297f91d
SHA256

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d
SHA512

3e146738a602d76584ac76413be2949128e6e84a04eed61102f0f9f419cb952ed47c73fb5c5238d7104ffd6461485db622062128850dda7fd70a05cd7a94486a
SSDEEP

6144:1Lon1m7VuwOCgOgmun3fEEVGCnt7jZFO6/OEb1d/Ck+X6Rp+6xq4hX3snt1e3:1LonI7VBOgunvtVPTAE1d/CPX6rB6tk

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

ISR Stealer payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1444-138-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral2/memory/1444-140-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral2/memory/1444-151-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral2/memory/1444-158-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/4384-156-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView
behavioral2/memory/4384-157-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView

Nirsoft 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4384-156-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral2/memory/4384-157-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4720-145-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-147-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4384-153-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4384-155-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4384-156-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4384-157-0x0000000000400000-0x000000000041F000-memory.dmp	upx

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

Processes:

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

description	pid	process	target process
PID 1116 set thread context of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 set thread context of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 set thread context of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

description pid process

Token: SeDebugPrivilege 1116 61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

pid process

1444 61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

description	pid	process
Token: SeDebugPrivilege	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

pid	process
1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
"C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1116

C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
"C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1444

C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\mS00hTq0Mf.ini"
3⤵
PID:4720

C:\Users\Admin\AppData\Local\Temp\61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\XLTL5CYOKa.ini"
3⤵
- Accesses Microsoft Outlook accounts
PID:4384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\mS00hTq0Mf.ini

Filesize
5B

MD5
d1ea279fb5559c020a1b4137dc4de237

SHA1
db6f8988af46b56216a6f0daf95ab8c9bdb57400

SHA256
fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

SHA512
720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

Download Submit
memory/1116-142-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/1116-136-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/1116-135-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/1444-151-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1444-138-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1444-158-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1444-140-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1444-137-0x0000000000000000-mapping.dmp

Download
memory/4384-153-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4384-152-0x0000000000000000-mapping.dmp

Download
memory/4384-155-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4384-156-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4384-157-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4720-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4720-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4720-147-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4720-145-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4720-144-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1116 wrote to memory of 1444	1116	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4720	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe
PID 1444 wrote to memory of 4384	1444	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe	61550623ca9dab65da52310e8acd573d15d21e416df11be57d10c0be0162ab8d.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads