purecrypter | dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20

Analysis

max time kernel
85s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04-02-2023 22:18

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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
behavioral1/memory/2036-55-0x000000001FD80000-0x0000000020066000-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 2 IoCs

Processes:

powershell.exedd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

pid process

1484 powershell.exe
2036 dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

pid	process
1484	powershell.exe
2036	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2036	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
Token: SeDebugPrivilege	1484	powershell.exe
Token: SeDebugPrivilege	2036	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

description	pid	process	target process
PID 2036 wrote to memory of 1484	2036	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	powershell.exe
PID 2036 wrote to memory of 1484	2036	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	powershell.exe
PID 2036 wrote to memory of 1484	2036	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:2036

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:1484

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/1484-63-0x000000000286B000-0x000000000288A000-memory.dmp

Filesize
124KB

Download
memory/1484-65-0x000000000286B000-0x000000000288A000-memory.dmp

Filesize
124KB

Download
memory/1484-56-0x0000000000000000-mapping.dmp

Download
memory/1484-57-0x000007FEFC4B1000-0x000007FEFC4B3000-memory.dmp

Filesize
8KB

Download
memory/1484-58-0x000007FEEC600000-0x000007FEED023000-memory.dmp

Filesize
10.1MB

Download
memory/1484-64-0x0000000002864000-0x0000000002867000-memory.dmp

Filesize
12KB

Download
memory/1484-61-0x0000000002864000-0x0000000002867000-memory.dmp

Filesize
12KB

Download
memory/1484-59-0x000007FEEBAA0000-0x000007FEEC5FD000-memory.dmp

Filesize
11.4MB

Download
memory/1484-62-0x000000001B710000-0x000000001BA0F000-memory.dmp

Filesize
3.0MB

Download
memory/2036-60-0x000000001B257000-0x000000001B276000-memory.dmp

Filesize
124KB

Download
memory/2036-54-0x000000013F1D0000-0x000000013F4D6000-memory.dmp

Filesize
3.0MB

Download
memory/2036-55-0x000000001FD80000-0x0000000020066000-memory.dmp

Filesize
2.9MB

Download
memory/2036-66-0x000000001C670000-0x000000001C746000-memory.dmp

Filesize
856KB

Download
memory/2036-67-0x000000001D680000-0x000000001D718000-memory.dmp

Filesize
608KB

Download
memory/2036-68-0x000000001DB40000-0x000000001DBF4000-memory.dmp

Filesize
720KB

Download
memory/2036-69-0x000000001B1B0000-0x000000001B24B000-memory.dmp

Filesize
620KB

Download
memory/2036-70-0x000000001BDA0000-0x000000001BDF6000-memory.dmp

Filesize
344KB

Download
memory/2036-71-0x000000001AD60000-0x000000001ADB4000-memory.dmp

Filesize
336KB

Download
memory/2036-72-0x000000001C120000-0x000000001C16C000-memory.dmp

Filesize
304KB

Download
memory/2036-73-0x000000001C210000-0x000000001C264000-memory.dmp

Filesize
336KB

Download
memory/2036-74-0x000000001B257000-0x000000001B276000-memory.dmp

Filesize
124KB

Download