purecrypter | 1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361

Analysis

max time kernel
130s
max time network
144s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
22/07/2022, 19:40

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General

Target

1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe
Size

1.4MB
MD5

c5cb27cb09bdc222aeffaf0cccb96bad
SHA1

d3d9681b8ee4730dca84d8cde608f12348bfe8e8
SHA256

1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361
SHA512

a05bc118eff3c215debbd9909dd3d34cb3d0f2adcb47ea29e626416275e7793096d6e8ba8448ebfff4fff93cb6b142d2fcae414a403de57ddce9029b019d6f8a

Score

10^/10

purecrypter warzonerat infostealer loader persistence rat trojan

Malware Config

Extracted

Family

warzonerat

45.162.228.171:26112

Signatures

Detect PureCrypter loader 1 IoCs

loader

resource	yara_rule
behavioral1/memory/1996-58-0x0000000001270000-0x00000000012CC000-memory.dmp	family_purecrypter

PureCrypter
PureCrypter is a loader which is intended for downloading and executing additional payloads.
trojan loader purecrypter
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

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-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Aehhvhxfn = "\"C:\\Users\\Admin\\AppData\\Roaming\\Msfhxqaxh\\Aehhvhxfn.exe\""	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
1132	timeout.exe
1988	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 992	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	27
PID 1996 wrote to memory of 992	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	27
PID 1996 wrote to memory of 992	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	27
PID 1996 wrote to memory of 992	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	27
PID 992 wrote to memory of 1132	992	cmd.exe	29
PID 992 wrote to memory of 1132	992	cmd.exe	29
PID 992 wrote to memory of 1132	992	cmd.exe	29
PID 992 wrote to memory of 1132	992	cmd.exe	29
PID 1996 wrote to memory of 1216	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	30
PID 1996 wrote to memory of 1216	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	30
PID 1996 wrote to memory of 1216	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	30
PID 1996 wrote to memory of 1216	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	30
PID 1216 wrote to memory of 1988	1216	cmd.exe	32
PID 1216 wrote to memory of 1988	1216	cmd.exe	32
PID 1216 wrote to memory of 1988	1216	cmd.exe	32
PID 1216 wrote to memory of 1988	1216	cmd.exe	32
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33
PID 1996 wrote to memory of 1400	1996	1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe	33

C:\Users\Admin\AppData\Local\Temp\1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe
"C:\Users\Admin\AppData\Local\Temp\1851a8dd1eb684515d31bb1b3a2f162eab634af839c9ef1002a8fc40bed8e361.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /nobreak /t 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:992
- - C:\Windows\SysWOW64\timeout.exe
    timeout /nobreak /t 20
    3⤵
    - Delays execution with timeout.exe
    PID:1132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 45
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\SysWOW64\timeout.exe
    timeout 45
    3⤵
    - Delays execution with timeout.exe
    PID:1988
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:1400

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

memory/1400-69-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-71-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-78-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-76-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-62-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-63-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-65-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-67-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1400-72-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1996-58-0x0000000001270000-0x00000000012CC000-memory.dmp

Filesize
368KB

Download
memory/1996-54-0x0000000001370000-0x00000000014DC000-memory.dmp

Filesize
1.4MB

Download
memory/1996-55-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/1996-59-0x0000000004EE0000-0x0000000004F2C000-memory.dmp

Filesize
304KB

Download