purecrypter | dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20

Analysis

max time kernel
100s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05-02-2023 22:19

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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

resource	yara_rule
behavioral1/memory/1416-55-0x000000001F760000-0x000000001FA46000-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

pid	Process
1780	powershell.exe
1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
Token: SeDebugPrivilege	1780	powershell.exe
Token: SeDebugPrivilege	1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1780	1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	28
PID 1416 wrote to memory of 1780	1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	28
PID 1416 wrote to memory of 1780	1416	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	28

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:1416
- 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:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1416-66-0x000000001D930000-0x000000001D9E4000-memory.dmp

Filesize
720KB

Download
memory/1416-55-0x000000001F760000-0x000000001FA46000-memory.dmp

Filesize
2.9MB

Download
memory/1416-56-0x000000001BB57000-0x000000001BB76000-memory.dmp

Filesize
124KB

Download
memory/1416-72-0x000000001BB57000-0x000000001BB76000-memory.dmp

Filesize
124KB

Download
memory/1416-54-0x000000013FE90000-0x0000000140196000-memory.dmp

Filesize
3.0MB

Download
memory/1416-71-0x000000001CBD0000-0x000000001CC24000-memory.dmp

Filesize
336KB

Download
memory/1416-70-0x000000001C6D0000-0x000000001C71C000-memory.dmp

Filesize
304KB

Download
memory/1416-68-0x000000001D030000-0x000000001D0CB000-memory.dmp

Filesize
620KB

Download
memory/1416-69-0x000000001C280000-0x000000001C2D4000-memory.dmp

Filesize
336KB

Download
memory/1416-67-0x000000001BC90000-0x000000001BCE6000-memory.dmp

Filesize
344KB

Download
memory/1416-64-0x000000001D7B0000-0x000000001D886000-memory.dmp

Filesize
856KB

Download
memory/1416-65-0x000000001C7C0000-0x000000001C858000-memory.dmp

Filesize
608KB

Download
memory/1780-58-0x000007FEFC451000-0x000007FEFC453000-memory.dmp

Filesize
8KB

Download
memory/1780-63-0x000000000255B000-0x000000000257A000-memory.dmp

Filesize
124KB

Download
memory/1780-61-0x0000000002554000-0x0000000002557000-memory.dmp

Filesize
12KB

Download
memory/1780-62-0x000000000255B000-0x000000000257A000-memory.dmp

Filesize
124KB

Download
memory/1780-60-0x000007FEEC340000-0x000007FEECE9D000-memory.dmp

Filesize
11.4MB

Download
memory/1780-59-0x000007FEECEA0000-0x000007FEED8C3000-memory.dmp

Filesize
10.1MB

Download