purecrypter | f771114282960678a312fb160481188d0214a056a16904605ad950e39d0ff93d

General

Target

Justificante.exe
Size

6KB
MD5

b5226c3f902fcb19239d77b3663233cf
SHA1

0bf7d9523c35bb347d27c547e84b8ba44af3edc4
SHA256

f771114282960678a312fb160481188d0214a056a16904605ad950e39d0ff93d
SHA512

26fa1ab51782127de1c773647ec5d4a02f213a5c45ef64b6b9ca6dfe612de6516387992dc55c8bdb7c3372410578bb388d1d949207902a9ea63bbed872aa903b
SSDEEP

96:r24EMFkg+auTh4+HL92f3QRZZy7PizmKkiNEeXzNtB:rlELEfATZOq4gpB

Score

10^/10

purecrypter warzonerat collection downloader infostealer loader persistence rat spyware stealer

Malware Config

Extracted

Family

purecrypter

C2

https://gab0r1.shop/EzopOepP/Regmur.dat

Extracted

Family

warzonerat

C2

79.134.225.19:6565

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

Warzone RAT payload 5 IoCs

rat

resource	yara_rule
behavioral2/memory/2572-166-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral2/memory/2572-169-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral2/memory/2572-170-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral2/memory/2572-171-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral2/memory/2572-199-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	Justificante.exe

Loads dropped DLL 6 IoCs

pid	Process
2572	Justificante.exe
2572	Justificante.exe
2572	Justificante.exe
2572	Justificante.exe
2572	Justificante.exe
2572	Justificante.exe

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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Justificante.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Justificante.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Lsdkpcwfy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Xrgfrndukxd\\Lsdkpcwfy.exe\""	Justificante.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4044 set thread context of 2572	4044	Justificante.exe	95

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
220	powershell.exe
220	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4044	Justificante.exe
Token: SeDebugPrivilege	220	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 220	4044	Justificante.exe	87
PID 4044 wrote to memory of 220	4044	Justificante.exe	87
PID 4044 wrote to memory of 220	4044	Justificante.exe	87
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95
PID 4044 wrote to memory of 2572	4044	Justificante.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Justificante.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Justificante.exe

C:\Users\Admin\AppData\Local\Temp\Justificante.exe
"C:\Users\Admin\AppData\Local\Temp\Justificante.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:220
- C:\Users\Admin\AppData\Local\Temp\Justificante.exe
  C:\Users\Admin\AppData\Local\Temp\Justificante.exe
  2⤵
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - outlook_office_path
  - outlook_win_path
  PID:2572

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k0bfurc4.al1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\freebl3.dll

Filesize
326KB

MD5
ef12ab9d0b231b8f898067b2114b1bc0

SHA1
6d90f27b2105945f9bb77039e8b892070a5f9442

SHA256
2b00fc4f541ac10c94e3556ff28e30a801811c36422546a546a445aca3f410f7

SHA512
2aa62bfba556ad8f042942dd25aa071ff6677c257904377c1ec956fd9e862abcbf379e0cfd8c630c303a32ece75618c24e3eef58bddb705c427985b944689193

Download Submit
C:\Users\Admin\AppData\Local\Temp\mozglue.dll

Filesize
133KB

MD5
75f8cc548cabf0cc800c25047e4d3124

SHA1
602676768f9faecd35b48c38a0632781dfbde10c

SHA256
fb419a60305f17359e2ac0510233ee80e845885eee60607715c67dd88e501ef0

SHA512
ed831c9c769aef3be253c52542cf032afa0a8fa5fe25ca704db65ee6883c608220df7102ac2b99ee9c2e599a0f5db99fd86894a4b169e68440eb1b0d0012672f

Download Submit
C:\Users\Admin\AppData\Local\Temp\msvcp140.dll

Filesize
429KB

MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

Download Submit
C:\Users\Admin\AppData\Local\Temp\nss3.dll

Filesize
1.2MB

MD5
d7858e8449004e21b01d468e9fd04b82

SHA1
9524352071ede21c167e7e4f106e9526dc23ef4e

SHA256
78758bf7f3b3b5e3477e38354acd32d787bc1286c8bd9b873471b9c195e638db

SHA512
1e2c981e6c0ca36c60c6e9cae9548b866d5c524df837095b30d618d9c322def7134c20de820105400dd1b58076b66d90274f67773ac6ba914f611b419babb440

Download Submit
C:\Users\Admin\AppData\Local\Temp\softokn3.dll

Filesize
141KB

MD5
471c983513694ac3002590345f2be0da

SHA1
6612b9af4ff6830fa9b7d4193078434ef72f775b

SHA256
bb3ff746471116c6ad0339fa0522aa2a44a787e33a29c7b27649a054ecd4d00f

SHA512
a9b0fb923bc3b567e933de10b141a3e9213640e3d790b4c4d753cf220d55593ae8026102909969ba6bfc22da3b2fcd01e30a9f5a74bd14a0fdec9beaf0fb1410

Download Submit
C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll

Filesize
81KB

MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
memory/220-157-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/220-161-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/220-142-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/220-140-0x0000000005B10000-0x0000000006138000-memory.dmp

Filesize
6.2MB

Download
memory/220-152-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/220-153-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/220-154-0x0000000006820000-0x000000000683E000-memory.dmp

Filesize
120KB

Download
memory/220-155-0x0000000008060000-0x00000000086DA000-memory.dmp

Filesize
6.5MB

Download
memory/220-156-0x0000000006D10000-0x0000000006D2A000-memory.dmp

Filesize
104KB

Download
memory/220-139-0x0000000003250000-0x0000000003286000-memory.dmp

Filesize
216KB

Download
memory/220-141-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/220-159-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/220-160-0x00000000054D0000-0x00000000054E0000-memory.dmp

Filesize
64KB

Download
memory/2572-199-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2572-166-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2572-169-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2572-170-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2572-171-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/2572-176-0x00000000045F0000-0x0000000004674000-memory.dmp

Filesize
528KB

Download
memory/2572-200-0x00000000045F0000-0x0000000004674000-memory.dmp

Filesize
528KB

Download
memory/4044-133-0x0000000000050000-0x0000000000058000-memory.dmp

Filesize
32KB

Download
memory/4044-137-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/4044-136-0x0000000004A80000-0x0000000004A8A000-memory.dmp

Filesize
40KB

Download
memory/4044-135-0x00000000049E0000-0x0000000004A72000-memory.dmp

Filesize
584KB

Download
memory/4044-134-0x0000000005070000-0x0000000005614000-memory.dmp

Filesize
5.6MB

Download
memory/4044-138-0x00000000079A0000-0x00000000079C2000-memory.dmp

Filesize
136KB

Download
memory/4044-158-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads