isrstealer | f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227

General

Target

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
Size

402KB
MD5

21838131e312ccc1629fbb4581f211fa
SHA1

7f32c6f2900f5427c84cc00377ed6e04183b156c
SHA256

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227
SHA512

20eb5ee491241d8b6d15d2c0b971a5938c7e5f4b37a87ae980a3f26c77fd4061f335f9c88fc824cb398a18ddccd7a2225468effc3f4b496c0addbe32f90a9a88
SSDEEP

6144:VNzK2WpGt4j/5MeXF4RaQWiZULy75ad99XHgFswLtiJV35XU36OvelMjqZ:VRKrueMe+RrW9hWiJVFUKOGlMjqZ

Score

10^/10

isrstealer collection 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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1368-59-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral1/memory/1368-61-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral1/memory/1368-62-0x0000000000401180-mapping.dmp	family_isrstealer
behavioral1/memory/1368-71-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer
behavioral1/memory/1368-79-0x0000000000400000-0x0000000000442000-memory.dmp	family_isrstealer

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/2016-77-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView
behavioral1/memory/2016-78-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView
behavioral1/memory/2016-80-0x0000000000400000-0x000000000041F000-memory.dmp	MailPassView

Nirsoft 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2016-77-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral1/memory/2016-78-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft
behavioral1/memory/2016-80-0x0000000000400000-0x000000000041F000-memory.dmp	Nirsoft

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2016-72-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral1/memory/2016-76-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral1/memory/2016-77-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral1/memory/2016-78-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral1/memory/2016-80-0x0000000000400000-0x000000000041F000-memory.dmp	upx

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exef2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

description	pid	process	target process
PID 340 set thread context of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 set thread context of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 set thread context of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

pid process

340 f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

description pid process

Token: SeDebugPrivilege 340 f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

pid process

1368 f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

pid	process
340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

description	pid	process
Token: SeDebugPrivilege	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

pid	process
1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exef2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
"C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:340

C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
"C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1368

C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\GqGybNK1sW.ini"
3⤵
PID:1244

C:\Users\Admin\AppData\Local\Temp\f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\XaxH7dhcjB.ini"
3⤵
- Accesses Microsoft Outlook accounts
PID:2016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/340-64-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/340-55-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/340-65-0x0000000002106000-0x0000000002117000-memory.dmp

Filesize
68KB

Download
memory/340-54-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/1244-70-0x00000000004512E0-mapping.dmp

Download
memory/1368-59-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1368-62-0x0000000000401180-mapping.dmp

Download
memory/1368-61-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1368-57-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1368-56-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1368-71-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1368-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2016-72-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2016-73-0x000000000041C410-mapping.dmp

Download
memory/2016-76-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2016-77-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2016-78-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2016-80-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

description	pid	process	target process
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 340 wrote to memory of 1368	340	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 1244	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe
PID 1368 wrote to memory of 2016	1368	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe	f2a5982ba901ace217b1592d80dbde04b029d14f47404525c7b8696a23b0e227.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads