isrstealer | f16bba5611c925cf12c428b437df35899ed1874f0c95f6180e99679f503a3e40

General

Target

FaceDominator.exe
Size

1.0MB
MD5

53c80c314eb143d4bf9b36a1e977fc54
SHA1

b4eaff640332e3708582e5e786b2f5c869fd84c1
SHA256

53565b6cb4bce84116a60b28a4470c470c6863789178cd7df2c9bb9835c475f8
SHA512

74ae5086a40a93d4b205c4b86978eb53b9e26412740efa7925ca89a5b2622fbb712de42cd9f9b22d6a069d185059587f822962fa2fb0991d0fe3637e03488d9e
SSDEEP

12288:8WqmWmaL0X4Y0Ig9MhL2Oo+5N0MJFAgljfWNh2Zkq35XoLvJgIVn+u6Bw8Dha5uH:aBt0L0Ig9MVjo+5NXnkh2TAJgIaa0

Score

10^/10

isrstealer credential_access discovery 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
behavioral1/memory/2812-17-0x0000000000400000-0x0000000000435000-memory.dmp	family_isrstealer
behavioral1/memory/2812-13-0x0000000000400000-0x0000000000435000-memory.dmp	family_isrstealer
behavioral1/memory/2812-45-0x0000000000400000-0x0000000000435000-memory.dmp	family_isrstealer
behavioral1/memory/2812-49-0x0000000000400000-0x0000000000435000-memory.dmp	family_isrstealer

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Executes dropped EXE 3 IoCs

Processes:

Service.exeService.exeFaceDominator-1.exe

pid process

2812 Service.exe
2852 Service.exe
2628 FaceDominator-1.exe
Loads dropped DLL 4 IoCs

Processes:

FaceDominator.exeService.exedw20.exe

pid process

2488 FaceDominator.exe
2812 Service.exe
2488 FaceDominator.exe
2652 dw20.exe
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

pid	process
2812	Service.exe
2852	Service.exe
2628	FaceDominator-1.exe

pid	process
2488	FaceDominator.exe
2812	Service.exe
2488	FaceDominator.exe
2652	dw20.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2852-29-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2852-30-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2852-31-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2852-25-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2852-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx

Suspicious use of SetThreadContext 2 IoCs

Processes:

FaceDominator.exeService.exe

description	pid	process	target process
PID 2488 set thread context of 2812	2488	FaceDominator.exe	Service.exe
PID 2812 set thread context of 2852	2812	Service.exe	Service.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Service.exeService.exeFaceDominator-1.exedw20.exeFaceDominator.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FaceDominator-1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FaceDominator.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Service.exe

pid process

2812 Service.exe

pid	process
2812	Service.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

FaceDominator.exeService.exeFaceDominator-1.exe

description	pid	process	target process
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2488 wrote to memory of 2812	2488	FaceDominator.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2812 wrote to memory of 2852	2812	Service.exe	Service.exe
PID 2488 wrote to memory of 2628	2488	FaceDominator.exe	FaceDominator-1.exe
PID 2488 wrote to memory of 2628	2488	FaceDominator.exe	FaceDominator-1.exe
PID 2488 wrote to memory of 2628	2488	FaceDominator.exe	FaceDominator-1.exe
PID 2488 wrote to memory of 2628	2488	FaceDominator.exe	FaceDominator-1.exe
PID 2628 wrote to memory of 2652	2628	FaceDominator-1.exe	dw20.exe
PID 2628 wrote to memory of 2652	2628	FaceDominator-1.exe	dw20.exe
PID 2628 wrote to memory of 2652	2628	FaceDominator-1.exe	dw20.exe
PID 2628 wrote to memory of 2652	2628	FaceDominator-1.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\FaceDominator.exe
"C:\Users\Admin\AppData\Local\Temp\FaceDominator.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\plugtemp\Service.exe
  C:\Users\Admin\AppData\Local\Temp\\plugtemp\Service.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Users\Admin\AppData\Local\Temp\plugtemp\Service.exe
    /scomma "C:\Users\Admin\AppData\Local\Temp\NvjN1FA54q.ini"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2852
- C:\Users\Admin\AppData\Local\Temp\FaceDominator-1.exe
  "C:\Users\Admin\AppData\Local\Temp\FaceDominator-1.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 408
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\NvjN1FA54q.ini

Filesize
5B

MD5
d1ea279fb5559c020a1b4137dc4de237

SHA1
db6f8988af46b56216a6f0daf95ab8c9bdb57400

SHA256
fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

SHA512
720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

Download Submit
\Users\Admin\AppData\Local\Temp\FaceDominator-1.exe

Filesize
363KB

MD5
1a6e75369f5da9fec92f3ab9dbbc4ae1

SHA1
e6b80b2ce8e4e42593ba151a3fc35227c9495fcf

SHA256
f6f739ed99e86afa29c3212c0899f41f047033defcced4b22a98971f5281e926

SHA512
a5cfdd6d951afa6512e3eb7c629710ac7919715089541d08e59fa5ac746b87b57c6988c0653b1025e79422e773cb462a29162acb977358c1f537fe5a02ae3aa8

Download Submit
\Users\Admin\AppData\Local\Temp\plugtemp\Service.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2488-1-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2488-2-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2488-3-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2488-0-0x00000000748E1000-0x00000000748E2000-memory.dmp

Filesize
4KB

Download
memory/2488-40-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Filesize
5.7MB

Download
memory/2812-9-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2812-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2812-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-17-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2812-11-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2812-45-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2812-49-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2852-29-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2852-30-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2852-31-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2852-25-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2852-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads