modiloader | 83d7062a6e44aed6a161da23937cc66f97982e045d933dc4dd2049df4496d34b

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220331-en
submitted
13/04/2022, 18:07

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General

Target
Attachment.exe
Size 645KB
Sample220413-wp954seddj
SHA256 83d7062a6e44aed6a161da23937cc66f97982e045d933dc4dd2049df4496d34b
MD5 6bb736bd3a18cb0a31e37e2922517e4e
SHA1 a9066b9266b3fa065fd73e7fbe2d71d073e1ccb8
SHA512 2af71bb8fbc10742e89ce2240ad28ee5ef2004c8713c663fe60fefe79e3039b14ea0fe545dc0a1c99d2961b47975459a5fb9b694f48a01b89062137e2785805f
MD5 SHA1 SHA512

Score

10^/10

modiloader netwire botnet persistence rat stealer trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

NetWire RAT payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/2480-158-0x0000000000000000-mapping.dmp	netwire
behavioral2/memory/2480-159-0x0000000010560000-0x00000000105A7000-memory.dmp	netwire
behavioral2/memory/2480-160-0x0000000000BA0000-0x0000000000BE4000-memory.dmp	netwire

Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer netwire

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-1-5-21-157025953-3125636059-437143553-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bkungwd = "C:\\Users\\Public\\Libraries\\dwgnukB.url"	Attachment.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1284	2480	WerFault.exe	100

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4180	powershell.exe
4180	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4180	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 4244	4760	Attachment.exe	92
PID 4760 wrote to memory of 4244	4760	Attachment.exe	92
PID 4760 wrote to memory of 4244	4760	Attachment.exe	92
PID 4244 wrote to memory of 4456	4244	cmd.exe	94
PID 4244 wrote to memory of 4456	4244	cmd.exe	94
PID 4244 wrote to memory of 4456	4244	cmd.exe	94
PID 4456 wrote to memory of 2596	4456	cmd.exe	96
PID 4456 wrote to memory of 2596	4456	cmd.exe	96
PID 4456 wrote to memory of 2596	4456	cmd.exe	96
PID 2596 wrote to memory of 452	2596	net.exe	97
PID 2596 wrote to memory of 452	2596	net.exe	97
PID 2596 wrote to memory of 452	2596	net.exe	97
PID 4456 wrote to memory of 4180	4456	cmd.exe	98
PID 4456 wrote to memory of 4180	4456	cmd.exe	98
PID 4456 wrote to memory of 4180	4456	cmd.exe	98
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100
PID 4760 wrote to memory of 2480	4760	Attachment.exe	100

C:\Users\Admin\AppData\Local\Temp\Attachment.exe
"C:\Users\Admin\AppData\Local\Temp\Attachment.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\Bkungwdt.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4244
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\Libraries\BkungwdO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4456
  - - C:\Windows\SysWOW64\net.exe
      net session
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2596
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 session
        5⤵
        
        PID:452
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4180
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:2480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 456
    3⤵
    - Program crash
    PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2480 -ip 2480
1⤵
PID:2848

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

BkungwdO.bat

Path C:\Users\Public\Libraries\BkungwdO.bat
Size 1KB
SHA256 4ef9821678da07138c19405387f3fb95e409fbd461c7b8d847c05075facd63ca
MD5 df48c09f243ebcc8a165f77a1c2bf889
SHA1 455f7db0adcc2a58d006f1630fb0bd55cd868c07
SHA512 735838c7cca953697ded48adfcd037b7f198072a8962f5940ce12e1bb1c7dd8c1f257a829276f5f5456f776f5bd13342222dd6e0dfc8f18a23f464f2c8d8f1cc
MD5 SHA1 SHA512

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Bkungwdt.bat

Path C:\Users\Public\Libraries\Bkungwdt.bat
Size 56B
SHA256 b2470bbd9ea785199aaaf07568db25094012822f2f998b27a103cbb0b3771706
MD5 cba438d34dc6c2971a89a1cae7de40d0
SHA1 0e1db795f427455f9dcc4e33e0f3bd2cdf766b99
SHA512 0c2639041845339d42964d3c50f340d0f7b288f094093daccb8c2bbaf1f00528a412262870076dcd6b901ca07e64eac4958b5bbd807a3b9de0d2ecdb9cfe87c2
MD5 SHA1 SHA512

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Cdex.bat

Path C:\Users\Public\Libraries\Cdex.bat
Size 155B
SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
MD5 213c60adf1c9ef88dc3c9b2d579959d2
SHA1 e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021
SHA512 fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7
MD5 SHA1 SHA512

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memory/2480-160-0x0000000000BA0000-0x0000000000BE4000-memory.dmp

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memory/2480-159-0x0000000010560000-0x00000000105A7000-memory.dmp

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memory/4180-147-0x0000000006710000-0x0000000006742000-memory.dmp

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memory/4180-150-0x00000000066F0000-0x000000000670E000-memory.dmp

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memory/4180-143-0x00000000052E0000-0x0000000005302000-memory.dmp

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memory/4180-144-0x0000000005440000-0x00000000054A6000-memory.dmp

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memory/4180-145-0x0000000005B90000-0x0000000005BF6000-memory.dmp

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memory/4180-146-0x0000000006180000-0x000000000619E000-memory.dmp

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memory/4180-148-0x000000006F660000-0x000000006F6AC000-memory.dmp

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memory/4180-149-0x0000000004EB5000-0x0000000004EB7000-memory.dmp

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memory/4180-142-0x00000000054F0000-0x0000000005B18000-memory.dmp

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memory/4180-151-0x0000000007B30000-0x00000000081AA000-memory.dmp

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memory/4180-152-0x00000000073C0000-0x00000000073DA000-memory.dmp

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memory/4180-153-0x00000000074F0000-0x00000000074FA000-memory.dmp

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memory/4180-154-0x00000000076E0000-0x0000000007776000-memory.dmp

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memory/4180-155-0x00000000076A0000-0x00000000076AE000-memory.dmp

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memory/4180-156-0x00000000077A0000-0x00000000077BA000-memory.dmp

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memory/4180-157-0x0000000007790000-0x0000000007798000-memory.dmp

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memory/4180-141-0x0000000004CD0000-0x0000000004D06000-memory.dmp

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