purecrypter | dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20

Analysis

max time kernel
131s
max time network
195s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
04-02-2023 04:48

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General

Target

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
Size

3.0MB
MD5

cdb75538c7adc7829a93cdf9a27c1fd7
SHA1

2e5ff4e8f2b4b087ccc7f4cb2ad59d4c3617a0c9
SHA256

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20
SHA512

f6eab79f9ba0111608ddc3b81b57224e5ccc86f2a4b3f14a11ef627a2d44f6539c061d5bcad7a68f7df0c05bbcb14d0285bfa508085233075452a3a75d1671d4
SSDEEP

98304:k5Sh7zrcGtirr9gIKvvwPDxISVNImdJ3R9/4:WAXrjtirrGIyYTD3R9A

Score

10^/10

purecrypter downloader loader

Malware Config

Signatures

Detect PureCrypter injector 1 IoCs

loader

Processes:

resource	yara_rule
behavioral2/memory/2780-121-0x000002A223670000-0x000002A223956000-memory.dmp	family_purecrypter

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

Processes:

powershell.exedd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

pid process

4048 powershell.exe
4048 powershell.exe
4048 powershell.exe
2780 dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

pid	process
4048	powershell.exe
4048	powershell.exe
4048	powershell.exe
2780	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2780	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
Token: SeDebugPrivilege	4048	powershell.exe
Token: SeDebugPrivilege	2780	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

description	pid	process	target process
PID 2780 wrote to memory of 4048	2780	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	powershell.exe
PID 2780 wrote to memory of 4048	2780	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
"C:\Users\Admin\AppData\Local\Temp\dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANgA1AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4048

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2780-142-0x000002A22356A000-0x000002A22356F000-memory.dmp

Filesize
20KB

Download
memory/2780-143-0x000002A224820000-0x000002A224876000-memory.dmp

Filesize
344KB

Download
memory/2780-122-0x000002A20ACA0000-0x000002A20ACC2000-memory.dmp

Filesize
136KB

Download
memory/2780-147-0x000002A22356A000-0x000002A22356F000-memory.dmp

Filesize
20KB

Download
memory/2780-146-0x000002A224D40000-0x000002A224D94000-memory.dmp

Filesize
336KB

Download
memory/2780-138-0x000002A223A00000-0x000002A223AD6000-memory.dmp

Filesize
856KB

Download
memory/2780-121-0x000002A223670000-0x000002A223956000-memory.dmp

Filesize
2.9MB

Download
memory/2780-141-0x000002A224660000-0x000002A224714000-memory.dmp

Filesize
720KB

Download
memory/2780-139-0x000002A223D00000-0x000002A223D9B000-memory.dmp

Filesize
620KB

Download
memory/2780-120-0x000002A208CF0000-0x000002A208FF6000-memory.dmp

Filesize
3.0MB

Download
memory/2780-140-0x000002A2245C0000-0x000002A224658000-memory.dmp

Filesize
608KB

Download
memory/2780-144-0x000002A224880000-0x000002A2248D4000-memory.dmp

Filesize
336KB

Download
memory/2780-145-0x000002A224940000-0x000002A22498C000-memory.dmp

Filesize
304KB

Download
memory/4048-130-0x0000014DC22E0000-0x0000014DC2356000-memory.dmp

Filesize
472KB

Download
memory/4048-123-0x0000000000000000-mapping.dmp

Download