purecrypter | f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785

General

Target

7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Size

7KB
MD5

1c72fb093ace75fffb093c6541ff4940
SHA1

7034c12131cc2e28fcf9235850a36b08e9983dce
SHA256

f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785
SHA512

4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed
SSDEEP

96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p

Score

10^/10

purecrypter remcos 28282 collection downloader loader persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

28282

C2

194.180.49.17:28282

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
gqhwjekrltlu-TOU33Q
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Detect PureCrypter injector 1 IoCs

loader

Processes:

resource	yara_rule
behavioral1/memory/2000-56-0x0000000006390000-0x000000000662C000-memory.dmp	family_purecrypter

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/1888-90-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/1888-93-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/980-88-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/980-91-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1476-89-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/980-88-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1888-90-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/980-91-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1888-93-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft

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:

7034c12131cc2e28fcf9235850a36b08e9983dce.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7034c12131cc2e28fcf9235850a36b08e9983dce.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Eesibjdz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gngrey\\Eesibjdz.exe\""	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

7034c12131cc2e28fcf9235850a36b08e9983dce.exe7034c12131cc2e28fcf9235850a36b08e9983dce.exe

description	pid	process	target process
PID 2000 set thread context of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 set thread context of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 set thread context of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 set thread context of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

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 3 IoCs

Processes:

powershell.exe7034c12131cc2e28fcf9235850a36b08e9983dce.exe

pid process

1716 powershell.exe
980 7034c12131cc2e28fcf9235850a36b08e9983dce.exe
980 7034c12131cc2e28fcf9235850a36b08e9983dce.exe

pid	process
1716	powershell.exe
980	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
980	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

7034c12131cc2e28fcf9235850a36b08e9983dce.exe

pid	process
1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7034c12131cc2e28fcf9235850a36b08e9983dce.exepowershell.exe7034c12131cc2e28fcf9235850a36b08e9983dce.exe

description	pid	process
Token: SeDebugPrivilege	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	1476	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

7034c12131cc2e28fcf9235850a36b08e9983dce.exe7034c12131cc2e28fcf9235850a36b08e9983dce.exe

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
"C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1716

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1736

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ikqyok"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:980

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\kmerpdfcm"
3⤵
- Accesses Microsoft Outlook accounts
PID:1888

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\vhjcpvpeahip"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1476

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ikqyok
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/980-82-0x0000000000476274-mapping.dmp

Download
memory/980-91-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/980-88-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1476-89-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1476-86-0x0000000000422206-mapping.dmp

Download
memory/1716-57-0x0000000000000000-mapping.dmp

Download
memory/1716-59-0x000000006F740000-0x000000006FCEB000-memory.dmp

Filesize
5.7MB

Download
memory/1716-60-0x000000006F740000-0x000000006FCEB000-memory.dmp

Filesize
5.7MB

Download
memory/1716-61-0x000000006F740000-0x000000006FCEB000-memory.dmp

Filesize
5.7MB

Download
memory/1736-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-76-0x0000000000432C26-mapping.dmp

Download
memory/1736-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-99-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1736-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1736-97-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1736-98-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1736-94-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1888-93-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1888-90-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1888-83-0x0000000000455238-mapping.dmp

Download
memory/2000-56-0x0000000006390000-0x000000000662C000-memory.dmp

Filesize
2.6MB

Download
memory/2000-55-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download
memory/2000-62-0x0000000005530000-0x00000000055B0000-memory.dmp

Filesize
512KB

Download
memory/2000-54-0x00000000011A0000-0x00000000011A8000-memory.dmp

Filesize
32KB

Download

description	pid	process	target process
PID 2000 wrote to memory of 1716	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	powershell.exe
PID 2000 wrote to memory of 1716	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	powershell.exe
PID 2000 wrote to memory of 1716	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	powershell.exe
PID 2000 wrote to memory of 1716	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	powershell.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 2000 wrote to memory of 1736	2000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 980	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1888	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
PID 1736 wrote to memory of 1476	1736	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads