purecrypter | 6da5b50897d3a38bbd255b30d480150a4b1a3ca59650a911c85c179184e0d78e

General

Target

ogbanseef.exe
Size

2.4MB
MD5

df95e42d4edb19dc4b94941f2b613492
SHA1

39037e64ebf0763a42ff4d0312d776d51bbbf06d
SHA256

ee116c48b8e4a3fd0e805b90b03ece7fee2e141d05a386a44bf3725b41d7a534
SHA512

0a98fbb4bfb9647ddb92c2bfea3504831d29d76274a206d07e88fe5dbf41d8544633008d5d1f2ecfb9390043e14090e1b1812bc41f2519d0d0943c8d3f0227fa
SSDEEP

49152:No981ADu1skJBigljMWzOVgEwmiJQgWW4O:N/AUzZYg8iJQw4

Score

10^/10

purecrypter downloader loader persistence

Malware Config

Signatures

Detect PureCrypter injector 1 IoCs

loader

Processes:

resource	yara_rule
behavioral1/memory/1116-55-0x0000000004A80000-0x0000000004CDC000-memory.dmp	family_purecrypter

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ogbanseef.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Eryrascyo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Pqijqagie\\Eryrascyo.exe\""	ogbanseef.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 11 IoCs

Processes:

powershell.exeogbanseef.exe

pid	process
1260	powershell.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe
1116	ogbanseef.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ogbanseef.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1116 ogbanseef.exe
Token: SeDebugPrivilege 1260 powershell.exe

description	pid	process
Token: SeDebugPrivilege	1116	ogbanseef.exe
Token: SeDebugPrivilege	1260	powershell.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

ogbanseef.exe

description	pid	process	target process
PID 1116 wrote to memory of 1260	1116	ogbanseef.exe	powershell.exe
PID 1116 wrote to memory of 1260	1116	ogbanseef.exe	powershell.exe
PID 1116 wrote to memory of 1260	1116	ogbanseef.exe	powershell.exe
PID 1116 wrote to memory of 1260	1116	ogbanseef.exe	powershell.exe
PID 1116 wrote to memory of 908	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 908	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 908	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 908	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 904	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 904	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 904	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 904	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 580	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 580	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 580	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 580	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 764	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 764	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 764	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 764	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 768	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 768	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 768	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 768	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 460	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 460	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 460	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 460	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 660	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 660	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 660	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 660	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 576	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 576	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 576	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 576	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 824	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 824	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 824	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 824	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 1048	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 1048	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 1048	1116	ogbanseef.exe	ogbanseef.exe
PID 1116 wrote to memory of 1048	1116	ogbanseef.exe	ogbanseef.exe

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
"C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1116

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:1260

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:908

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:904

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:580

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:764

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:768

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:460

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:660

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:576

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:824

C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
C:\Users\Admin\AppData\Local\Temp\ogbanseef.exe
2⤵
PID:1048

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1116-54-0x00000000002D0000-0x0000000000532000-memory.dmp

Filesize
2.4MB

Download
memory/1116-55-0x0000000004A80000-0x0000000004CDC000-memory.dmp

Filesize
2.4MB

Download
memory/1116-56-0x0000000076681000-0x0000000076683000-memory.dmp

Filesize
8KB

Download
memory/1116-62-0x0000000005040000-0x000000000508C000-memory.dmp

Filesize
304KB

Download
memory/1260-57-0x0000000000000000-mapping.dmp

Download
memory/1260-59-0x000000006FE60000-0x000000007040B000-memory.dmp

Filesize
5.7MB

Download
memory/1260-60-0x000000006FE60000-0x000000007040B000-memory.dmp

Filesize
5.7MB

Download
memory/1260-61-0x000000006FE60000-0x000000007040B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads