purecrypter | dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20

Analysis

max time kernel
83s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

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

resource	yara_rule
behavioral1/memory/1796-55-0x000000001F970000-0x000000001FC56000-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
668	powershell.exe
1796	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1796	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe
Token: SeDebugPrivilege	668	powershell.exe
Token: SeDebugPrivilege	1796	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 668	1796	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	28
PID 1796 wrote to memory of 668	1796	dd218eb78e26587e43df5f00ff3ad87e23154c672615309a193a657323b62e20.exe	28
PID 1796 wrote to memory of 668	1796	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:1796
- 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:668

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/668-61-0x00000000023B4000-0x00000000023B7000-memory.dmp

Filesize
12KB

Download
memory/668-63-0x00000000023BB000-0x00000000023DA000-memory.dmp

Filesize
124KB

Download
memory/668-57-0x000007FEFC101000-0x000007FEFC103000-memory.dmp

Filesize
8KB

Download
memory/668-62-0x00000000023BB000-0x00000000023DA000-memory.dmp

Filesize
124KB

Download
memory/668-58-0x000007FEECAE0000-0x000007FEED503000-memory.dmp

Filesize
10.1MB

Download
memory/668-60-0x000007FEEBF80000-0x000007FEECADD000-memory.dmp

Filesize
11.4MB

Download
memory/1796-59-0x000000001AC27000-0x000000001AC46000-memory.dmp

Filesize
124KB

Download
memory/1796-54-0x000000013FB50000-0x000000013FE56000-memory.dmp

Filesize
3.0MB

Download
memory/1796-55-0x000000001F970000-0x000000001FC56000-memory.dmp

Filesize
2.9MB

Download
memory/1796-64-0x000000001DF40000-0x000000001E016000-memory.dmp

Filesize
856KB

Download
memory/1796-65-0x000000001CD90000-0x000000001CE28000-memory.dmp

Filesize
608KB

Download
memory/1796-66-0x000000001BE60000-0x000000001BEFB000-memory.dmp

Filesize
620KB

Download
memory/1796-67-0x000000001E9D0000-0x000000001EA84000-memory.dmp

Filesize
720KB

Download
memory/1796-68-0x000000001E0C0000-0x000000001E116000-memory.dmp

Filesize
344KB

Download
memory/1796-69-0x000000001BC90000-0x000000001BCE4000-memory.dmp

Filesize
336KB

Download
memory/1796-70-0x000000001D2C0000-0x000000001D30C000-memory.dmp

Filesize
304KB

Download
memory/1796-71-0x000000001E360000-0x000000001E3B4000-memory.dmp

Filesize
336KB

Download
memory/1796-72-0x000000001AC27000-0x000000001AC46000-memory.dmp

Filesize
124KB

Download