purecrypter | ce7c3c09794ee39a804fc03c191aecbc30c6d96cdf8a87cad9d92a06a118883f

General

Target

Remittance pos.invioce.exe
Size

8KB
MD5

b400834d73b4a98fc9d7abf83a149a2b
SHA1

8679b02dd6f9166152d1111374659c0639500043
SHA256

1f5d7c12cd6c2ea7752258c06c20b68bde32d1a3ef6e647c3cf809e1283452f6
SHA512

80fc4660b6e512093bb4e3753615b80bc09a092fc2852f932274e181303c756c8e6054c97b3d2139afad7d0128ae566b0772880e56660c83edaac67207e0703e
SSDEEP

192:NgkfwL2sLMg+JLFr7dYeHkRW4zkXvvF3Hy8qgBG:qkfwLZLbqLFr7dNET+t3S8qA

Score

10^/10

purecrypter collection downloader loader spyware stealer

Malware Config

Extracted

Family

purecrypter

C2

http://85.31.45.42/Dsgnow.dll

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Remittance pos.invioce.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	Remittance pos.invioce.exe

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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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 profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Remittance pos.invioce.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

41 api.ipify.org
42 api.ipify.org
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

2408 powershell.exe
2408 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Remittance pos.invioce.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4516 Remittance pos.invioce.exe
Token: SeDebugPrivilege 2408 powershell.exe

flow	ioc
41	api.ipify.org
42	api.ipify.org

pid	process
2408	powershell.exe
2408	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4516	Remittance pos.invioce.exe
Token: SeDebugPrivilege	2408	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Remittance pos.invioce.exe

description	pid	process	target process
PID 4516 wrote to memory of 2408	4516	Remittance pos.invioce.exe	powershell.exe
PID 4516 wrote to memory of 2408	4516	Remittance pos.invioce.exe	powershell.exe
PID 4516 wrote to memory of 2408	4516	Remittance pos.invioce.exe	powershell.exe

outlook_office_path 1 IoCs

Processes:

Remittance pos.invioce.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

outlook_win_path 1 IoCs

Processes:

Remittance pos.invioce.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

C:\Users\Admin\AppData\Local\Temp\Remittance pos.invioce.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance pos.invioce.exe"
1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4516

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgA0AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j00qa5fd.f3v.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2408-152-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2408-161-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2408-155-0x00000000072B0000-0x000000000792A000-memory.dmp

Filesize
6.5MB

Download
memory/2408-156-0x0000000006C60000-0x0000000006C7A000-memory.dmp

Filesize
104KB

Download
memory/2408-154-0x0000000005BA0000-0x0000000005BBE000-memory.dmp

Filesize
120KB

Download
memory/2408-139-0x0000000002200000-0x0000000002236000-memory.dmp

Filesize
216KB

Download
memory/2408-140-0x0000000004C20000-0x0000000005248000-memory.dmp

Filesize
6.2MB

Download
memory/2408-141-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/2408-142-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/2408-160-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2408-153-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2408-159-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/2408-157-0x00000000008D0000-0x00000000008E0000-memory.dmp

Filesize
64KB

Download
memory/4516-134-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/4516-137-0x0000000004B40000-0x0000000004B4A000-memory.dmp

Filesize
40KB

Download
memory/4516-170-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-158-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-133-0x0000000000110000-0x0000000000118000-memory.dmp

Filesize
32KB

Download
memory/4516-136-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-135-0x0000000004AA0000-0x0000000004B32000-memory.dmp

Filesize
584KB

Download
memory/4516-167-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-166-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-165-0x0000000008870000-0x00000000088C0000-memory.dmp

Filesize
320KB

Download
memory/4516-168-0x0000000008A90000-0x0000000008C52000-memory.dmp

Filesize
1.8MB

Download
memory/4516-169-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4516-138-0x0000000007820000-0x0000000007842000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads