purecrypter | 9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20-03-2024 02:35

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Report Analysis Logs

General

Target

9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
Size

16KB
MD5

be5041fb817fe1edf7e6c487db9b5534
SHA1

38040d570af54917957504bd88ab7c555e0ee3ba
SHA256

9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2
SHA512

8a0200768436ec3e06b11b2447136720af887398d37bc3e635dd417b5dfd86734f8ebc425ed1e8eb2b2689838f3acda0f9a3f6192a54460b4da1027112d28e62
SSDEEP

384:XZ5sjmrXdBJsVbWcoWj7/D1IDBRJJSrxGw6lx87Pr:p5sjmtsV7PI1PmkEr

Score

10^/10

purecrypter zgrat downloader loader rat

Malware Config

Extracted

Family

purecrypter

http://41.216.183.153/no/dontlook/re/research/Kofdzsxxr.mp3

Signatures

Detect ZGRat V1 35 IoCs

resource	yara_rule
behavioral1/memory/4964-3-0x000001B6CAA70000-0x000001B6CAD1A000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-4-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-5-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-7-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-9-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-11-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-13-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-15-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-17-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-19-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-23-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-25-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-21-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-27-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-31-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-33-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-35-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-37-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-39-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-29-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-43-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-41-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-47-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-49-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-51-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-53-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-45-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-57-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-55-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-59-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-61-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-63-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-65-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4964-67-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp	family_zgrat_v1
behavioral1/memory/4492-4843-0x0000017C93D90000-0x0000017C93E76000-memory.dmp	family_zgrat_v1

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

Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs

description	pid	Process	procid_target
PID 4964 created 3300	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	101
PID 1496 created 4104	1496	NumberDecimalDigits.exe	63

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Executes dropped EXE 2 IoCs

pid	Process
1496	NumberDecimalDigits.exe
5080	NumberDecimalDigits.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4964 set thread context of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 1496 set thread context of 5080	1496	NumberDecimalDigits.exe	114

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
1496	NumberDecimalDigits.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
Token: SeDebugPrivilege	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
Token: SeDebugPrivilege	4492	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
Token: SeDebugPrivilege	2536	powershell.exe
Token: SeDebugPrivilege	1496	NumberDecimalDigits.exe
Token: SeDebugPrivilege	1496	NumberDecimalDigits.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 4964 wrote to memory of 4492	4964	9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe	102
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114
PID 1496 wrote to memory of 5080	1496	NumberDecimalDigits.exe	114

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4104
- C:\Users\Admin\AppData\Local\Method\hgupkc\NumberDecimalDigits.exe
  "C:\Users\Admin\AppData\Local\Method\hgupkc\NumberDecimalDigits.exe"
  2⤵
  - Executes dropped EXE
  PID:5080

C:\Users\Admin\AppData\Local\Temp\9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
"C:\Users\Admin\AppData\Local\Temp\9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe"
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4964

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3300
- C:\Users\Admin\AppData\Local\Temp\9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe
  "C:\Users\Admin\AppData\Local\Temp\9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4492

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwALABDADoAXABVAHMAZQByAHMAXABBAGQAbQBpAG4AXABBAHAAcABEAGEAdABhAFwATABvAGMAYQBsAFwAVABlAG0AcABcADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAATgB1AG0AYgBlAHIARABlAGMAaQBtAGEAbABEAGkAZwBpAHQAcwAuAGUAeABlADsA
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2536

C:\Users\Admin\AppData\Local\Method\hgupkc\NumberDecimalDigits.exe
C:\Users\Admin\AppData\Local\Method\hgupkc\NumberDecimalDigits.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Method\hgupkc\NumberDecimalDigits.exe

Filesize
16KB

MD5
be5041fb817fe1edf7e6c487db9b5534

SHA1
38040d570af54917957504bd88ab7c555e0ee3ba

SHA256
9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2

SHA512
8a0200768436ec3e06b11b2447136720af887398d37bc3e635dd417b5dfd86734f8ebc425ed1e8eb2b2689838f3acda0f9a3f6192a54460b4da1027112d28e62

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\9663cb27096c5592837253411ddee56a54b84b1851cd77e7b33768091ef26fa2.exe.log

Filesize
1KB

MD5
b78f0793c3ef1d417e56d34b656b40bb

SHA1
4a622f8022516098cb5aae35a5953bde039111a7

SHA256
67090a383e35cf075d5c0f0c1d78c4e4b805de6aa951b5d4dd01fd9ae8ccdcfb

SHA512
ab3fb91602bd6f070d9b060da4a26d01869e9b23e319db9164d2e251b2c47db690da0f832e69a45c03bc99919942ef516a0b157cfa0aaea84e64b1e90ae5b933

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_siofvrkj.uqc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1496-11977-0x00007FFA4CE30000-0x00007FFA4D8F1000-memory.dmp

Filesize
10.8MB

Download
memory/1496-11918-0x00000243440D0000-0x00000243440D1000-memory.dmp

Filesize
4KB

Download
memory/1496-8738-0x000002435E460000-0x000002435E470000-memory.dmp

Filesize
64KB

Download
memory/1496-8206-0x00007FFA4CE30000-0x00007FFA4D8F1000-memory.dmp

Filesize
10.8MB

Download
memory/1496-7091-0x000002435E460000-0x000002435E470000-memory.dmp

Filesize
64KB

Download
memory/1496-7090-0x00007FFA4CE30000-0x00007FFA4D8F1000-memory.dmp

Filesize
10.8MB

Download
memory/2536-7077-0x00000235605A0000-0x00000235605C2000-memory.dmp

Filesize
136KB

Download
memory/2536-7074-0x0000023560670000-0x0000023560680000-memory.dmp

Filesize
64KB

Download
memory/2536-7073-0x0000023560670000-0x0000023560680000-memory.dmp

Filesize
64KB

Download
memory/2536-7072-0x00007FFA4D5A0000-0x00007FFA4E061000-memory.dmp

Filesize
10.8MB

Download
memory/2536-7087-0x00007FFA4D5A0000-0x00007FFA4E061000-memory.dmp

Filesize
10.8MB

Download
memory/4492-4840-0x0000000140000000-0x000000014009A000-memory.dmp

Filesize
616KB

Download
memory/4492-7071-0x00007FFA4D9D0000-0x00007FFA4E491000-memory.dmp

Filesize
10.8MB

Download
memory/4492-7069-0x0000017CAC6E0000-0x0000017CAC736000-memory.dmp

Filesize
344KB

Download
memory/4492-4844-0x0000017CAC7C0000-0x0000017CAC7D0000-memory.dmp

Filesize
64KB

Download
memory/4492-4843-0x0000017C93D90000-0x0000017C93E76000-memory.dmp

Filesize
920KB

Download
memory/4492-4841-0x00007FFA4D9D0000-0x00007FFA4E491000-memory.dmp

Filesize
10.8MB

Download
memory/4964-27-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-37-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-29-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-43-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-41-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-47-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-49-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-51-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-53-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-45-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-57-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-55-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-59-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-61-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-63-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-65-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-67-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-1283-0x00007FFA4D9D0000-0x00007FFA4E491000-memory.dmp

Filesize
10.8MB

Download
memory/4964-1843-0x000001B6B0860000-0x000001B6B0870000-memory.dmp

Filesize
64KB

Download
memory/4964-4830-0x000001B6B0810000-0x000001B6B0811000-memory.dmp

Filesize
4KB

Download
memory/4964-4831-0x000001B6CAE20000-0x000001B6CAF0C000-memory.dmp

Filesize
944KB

Download
memory/4964-4832-0x000001B6B20E0000-0x000001B6B212C000-memory.dmp

Filesize
304KB

Download
memory/4964-4833-0x000001B6CAF10000-0x000001B6CAF64000-memory.dmp

Filesize
336KB

Download
memory/4964-39-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-35-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-33-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-4842-0x00007FFA4D9D0000-0x00007FFA4E491000-memory.dmp

Filesize
10.8MB

Download
memory/4964-31-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-0-0x000001B6B0430000-0x000001B6B0438000-memory.dmp

Filesize
32KB

Download
memory/4964-21-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-25-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-23-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-19-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-17-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-15-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-13-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-11-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-9-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-7-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-5-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-4-0x000001B6CAA70000-0x000001B6CAD14000-memory.dmp

Filesize
2.6MB

Download
memory/4964-3-0x000001B6CAA70000-0x000001B6CAD1A000-memory.dmp

Filesize
2.7MB

Download
memory/4964-2-0x000001B6B0860000-0x000001B6B0870000-memory.dmp

Filesize
64KB

Download
memory/4964-1-0x00007FFA4D9D0000-0x00007FFA4E491000-memory.dmp

Filesize
10.8MB

Download
memory/5080-11926-0x00007FFA4CE30000-0x00007FFA4D8F1000-memory.dmp

Filesize
10.8MB

Download
memory/5080-11927-0x00000126C9BB0000-0x00000126C9BC0000-memory.dmp

Filesize
64KB

Download