92153e88db63016334625514802d0d1019363989d7b3f6863947ce0e490c1006

Resubmissions

26/05/2023, 10:09

230526-l61b5aeh92 6

26/05/2023, 10:02

230526-l2zvsseh83 6

17/05/2023, 11:13

230517-nbd7hsdg8x 6

Analysis

max time kernel
135s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2023, 10:02

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Report Analysis Logs

General

Target

reknowMechant.montageFirring.dll
Size

1.2MB
MD5

de387211ce4d850475df9c828ebd5cb6
SHA1

1be0957d4bc3dee90f43ef6b2c4a6045a6511dfc
SHA256

92153e88db63016334625514802d0d1019363989d7b3f6863947ce0e490c1006
SHA512

95dcf113aa5f532493eae8ccd208f7f64611f18465a8d52fd6caab66c178d352dd230775342298240d6e78fb27e7adaa92fb8b076a49f23ed7c4722d4fc2f003
SSDEEP

24576:tvr+qtKbfCGLovhM2he3og6p6tOs1CTvmO4Kr5x+1kxjq0cnccy:M5CPjKjLCTvm0oqxdv

Score

6^/10

persistence

Malware Config

Signatures

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\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	wermgr.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unbevelledHamuli = "regsvr32 /s \"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\cimeter\\unbevelledHamuli.dll\" "	wermgr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2028 set thread context of 1444	2028	regsvr32.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1444	wermgr.exe
1444	wermgr.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
2028	regsvr32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2028	2348	regsvr32.exe	81
PID 2348 wrote to memory of 2028	2348	regsvr32.exe	81
PID 2348 wrote to memory of 2028	2348	regsvr32.exe	81
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83
PID 2028 wrote to memory of 1444	2028	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\reknowMechant.montageFirring.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\reknowMechant.montageFirring.dll
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\wermgr.exe
    "C:\Windows\SysWOW64\wermgr.exe"
    3⤵
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    PID:1444

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1444-135-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/1444-139-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/2028-133-0x00000000010C0000-0x0000000001155000-memory.dmp

Filesize
596KB

Download
memory/2028-134-0x00000000028E0000-0x0000000002956000-memory.dmp

Filesize
472KB

Download
memory/2028-143-0x00000000028E0000-0x0000000002956000-memory.dmp

Filesize
472KB

Download