purecrypter | 99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-06-2024 04:47

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General

Target

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
Size

6KB
MD5

1c56623199e1959f271a191d603360bf
SHA1

9a7429e8b08ef843739c7739e8a314006c20b2af
SHA256

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a
SHA512

87c50fb8f13d5b0ce5d83d99e64a7728e466e33118faea4c52136dd8a2f70d5f4217c90f4cc3c415628b9f96b7ed114cedb2455e3edc1cc39e67a36b79fceee4
SSDEEP

96:QhN/c/kk91xUL9678Ms0wFFpBV4Xh4yvn1j4r/8iT85fTc70zNt:QhN/cx1o96hwFH4R4viRM+

Score

10^/10

purecrypter downloader loader persistence spyware stealer

Malware Config

Extracted

Family

purecrypter

http://103.195.103.33/nf/Qtdxulkcon.wav

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gljzdykchd = "C:\\Users\\Admin\\AppData\\Roaming\\Gljzdykchd.exe"	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

description	pid	process	target process
PID 3040 set thread context of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

pid	process
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

description	pid	process
Token: SeDebugPrivilege	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
Token: SeDebugPrivilege	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
Token: SeDebugPrivilege	5292	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

description	pid	process	target process
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
PID 3040 wrote to memory of 5292	3040	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe	99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe

C:\Users\Admin\AppData\Local\Temp\99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
"C:\Users\Admin\AppData\Local\Temp\99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe
  "C:\Users\Admin\AppData\Local\Temp\99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5292

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4468 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a.exe.log

Filesize
1KB

MD5
f3eb81974dc5933681e933f07209ff5f

SHA1
7af8cae0f1d03e82daaf784df9886705685baac7

SHA256
e82069884dd428bd6a1c67fe00c5fa56f9c4d62b538b694694a699588f1f4ab2

SHA512
d9aa3871dffb76c8a73a7940fa03bbc9b65cf575cbd07f7c1fbf490cb0f3d670415eaef0bf79e34689f61ab3cdfbb104efdef004becc12e54b501f02f948aaff

Download Submit
C:\Users\Admin\AppData\Local\Temp\Fgvzo.tmpdb

Filesize
148KB

MD5
90a1d4b55edf36fa8b4cc6974ed7d4c4

SHA1
aba1b8d0e05421e7df5982899f626211c3c4b5c1

SHA256
7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

SHA512
ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

Download Submit
memory/3040-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/3040-1-0x00000000007B0000-0x00000000007B8000-memory.dmp

Filesize
32KB

Download
memory/3040-2-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3040-3-0x00000000087B0000-0x0000000008A9C000-memory.dmp

Filesize
2.9MB

Download
memory/3040-4-0x0000000009050000-0x00000000095F4000-memory.dmp

Filesize
5.6MB

Download
memory/3040-5-0x0000000008B40000-0x0000000008BD2000-memory.dmp

Filesize
584KB

Download
memory/3040-17-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-27-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-35-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-47-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-45-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-43-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-41-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-37-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-33-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-31-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-29-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-25-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-39-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-23-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-21-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-19-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-15-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-13-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-11-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-9-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-7-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-6-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-69-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-67-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-65-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-63-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-61-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-59-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-57-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-55-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-53-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-51-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-49-0x00000000087B0000-0x0000000008A96000-memory.dmp

Filesize
2.9MB

Download
memory/3040-4892-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3040-4893-0x0000000001050000-0x0000000001178000-memory.dmp

Filesize
1.2MB

Download
memory/3040-4894-0x0000000000F80000-0x0000000000FCC000-memory.dmp

Filesize
304KB

Download
memory/3040-4895-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/3040-4896-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3040-4897-0x0000000000FE0000-0x0000000001034000-memory.dmp

Filesize
336KB

Download
memory/3040-4904-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5292-4902-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/5292-4903-0x00000000055C0000-0x00000000056D6000-memory.dmp

Filesize
1.1MB

Download
memory/5292-4905-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5292-4906-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5292-7243-0x0000000005890000-0x000000000592E000-memory.dmp

Filesize
632KB

Download
memory/5292-7244-0x0000000005F50000-0x0000000005F7C000-memory.dmp

Filesize
176KB

Download
memory/5292-7245-0x0000000005FF0000-0x0000000006056000-memory.dmp

Filesize
408KB

Download
memory/5292-7246-0x0000000006900000-0x000000000697A000-memory.dmp

Filesize
488KB

Download
memory/5292-7276-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download