purecrypter | 1d3193d3f4806b993f8bf3874f0bfbacfedd860a82ed8b6ab26a9a0d30338a7d

Analysis

max time kernel
53s
max time network
37s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
18-02-2023 22:12

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General

Target

Hogwarts Legacy by Empress.exe.vir.exe
Size

715.8MB
MD5

6697e2951a46bee77fcbd59321c8fc06
SHA1

c8966259d2aa9c216f173f566f3962531b405f10
SHA256

1d3193d3f4806b993f8bf3874f0bfbacfedd860a82ed8b6ab26a9a0d30338a7d
SHA512

fe2be9aeb203bcc81c205e833a1ed9a698cf6edc82053431a34e8d84f2447e9bcaddda11ff4a5b93df7a45ffcd2a6c4f483907f30326d6ce43faf9ee2ffdb1c1
SSDEEP

1536:3rae78zjORCDGwfdCSog013131Zs5gW0MuiNcL3IIG4BLpre1ID1PxY3hBq:dahKyd2n31F253ObL3IIG4xle1IVxGq

Score

10^/10

purecrypter downloader loader persistence

Malware Config

Extracted

Family

purecrypter

http://comicmaster.org.uk/img/css/design/fabric/bo/Kvxut.dat

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1668	setupov16.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce	Hogwarts Legacy by Empress.exe.vir.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	Hogwarts Legacy by Empress.exe.vir.exe

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 1 IoCs

pid	Process
1600	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	setupov16.exe
Token: SeDebugPrivilege	1600	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1352 wrote to memory of 1668	1352	Hogwarts Legacy by Empress.exe.vir.exe	28
PID 1668 wrote to memory of 1600	1668	setupov16.exe	29
PID 1668 wrote to memory of 1600	1668	setupov16.exe	29
PID 1668 wrote to memory of 1600	1668	setupov16.exe	29
PID 1668 wrote to memory of 1600	1668	setupov16.exe	29

C:\Users\Admin\AppData\Local\Temp\Hogwarts Legacy by Empress.exe.vir.exe
"C:\Users\Admin\AppData\Local\Temp\Hogwarts Legacy by Empress.exe.vir.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setupov16.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setupov16.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setupov16.exe

Filesize
362.4MB

MD5
bdefa58976786e95522af2cac8268e4a

SHA1
00073f4702ccbc7cb9de4e6ff6bfa028e9169137

SHA256
881f8a9d8b2c2650c9dc66076983941baeeb81ea9bf19d9a1e8904fed70ace12

SHA512
5cf26b14502e1bfe6504fe7be0e8b60afbae7cac788f755f76b49800e783260029210579d9ff57bd99e5559731a06593c373df616c09365e9e42456168f7bfb0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setupov16.exe

Filesize
362.4MB

MD5
bdefa58976786e95522af2cac8268e4a

SHA1
00073f4702ccbc7cb9de4e6ff6bfa028e9169137

SHA256
881f8a9d8b2c2650c9dc66076983941baeeb81ea9bf19d9a1e8904fed70ace12

SHA512
5cf26b14502e1bfe6504fe7be0e8b60afbae7cac788f755f76b49800e783260029210579d9ff57bd99e5559731a06593c373df616c09365e9e42456168f7bfb0

Download Submit
memory/1600-63-0x000000006F790000-0x000000006FD3B000-memory.dmp

Filesize
5.7MB

Download
memory/1600-64-0x000000006F790000-0x000000006FD3B000-memory.dmp

Filesize
5.7MB

Download
memory/1668-57-0x0000000000970000-0x0000000000978000-memory.dmp

Filesize
32KB

Download
memory/1668-58-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1668-59-0x00000000058B0000-0x000000000595A000-memory.dmp

Filesize
680KB

Download
memory/1668-60-0x0000000000610000-0x0000000000624000-memory.dmp

Filesize
80KB

Download