Malware Analysis Report

2025-01-02 12:14

Sample ID 240418-nzdkwscc27
Target Lader.exe
SHA256 c26a234d8215ec18401a5bf4de51b014440263db8dd033684d6a0f19e345e733
Tags
asyncrat default rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c26a234d8215ec18401a5bf4de51b014440263db8dd033684d6a0f19e345e733

Threat Level: Known bad

The file Lader.exe was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

AsyncRat

Async RAT payload

Deletes itself

Unsigned PE

Delays execution with timeout.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-18 11:49

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-18 11:49

Reported

2024-04-18 11:52

Platform

win7-20240221-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Lader.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Lader.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Lader.exe

"C:\Users\Admin\AppData\Local\Temp\Lader.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB8EF.tmp.bat""

C:\Windows\SysWOW64\timeout.exe

timeout 3

Network

Country Destination Domain Proto
BE 84.197.94.144:30120 tcp
BE 84.197.94.144:30120 tcp
BE 84.197.94.144:30120 tcp

Files

memory/2936-1-0x00000000742C0000-0x00000000749AE000-memory.dmp

memory/2936-0-0x00000000003C0000-0x000000000040C000-memory.dmp

memory/2936-2-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-3-0x00000000005F0000-0x0000000000603000-memory.dmp

memory/2936-4-0x0000000001FC0000-0x0000000001FD2000-memory.dmp

memory/2936-5-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-6-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-7-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-25-0x00000000050A0000-0x00000000050AE000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

C:\Users\Admin\AppData\Local\Temp\Tar4255.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

memory/2936-46-0x00000000742C0000-0x00000000749AE000-memory.dmp

memory/2936-47-0x0000000008440000-0x0000000008540000-memory.dmp

memory/2936-48-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-49-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-50-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-51-0x0000000004CE0000-0x0000000004D20000-memory.dmp

memory/2936-52-0x0000000008440000-0x0000000008540000-memory.dmp

memory/2936-53-0x0000000008E20000-0x0000000008E2E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpB8EF.tmp.bat

MD5 6e112d7be0804c1837ee7246f403a25e
SHA1 3d5b1159759f7e3768f6c2285ecdbf0f47bee5fd
SHA256 96f30d3206a0a21e256123223d850e3b5c66f67adf0d8b6121eccc72891fb610
SHA512 095dbb94d01ec1b1d847d61ab6e0c7eb716a1a22b9881f3c3957a4a2a596a3d61c55f12637bb52766f962be12d2b549b1ff05e308f7c1f7b1b354e5b006a913a

memory/2936-82-0x00000000742C0000-0x00000000749AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 11:49

Reported

2024-04-18 11:52

Platform

win10v2004-20240412-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Lader.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Lader.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 816 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\Lader.exe C:\Windows\SysWOW64\cmd.exe
PID 816 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\Lader.exe C:\Windows\SysWOW64\cmd.exe
PID 816 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\Lader.exe C:\Windows\SysWOW64\cmd.exe
PID 2672 wrote to memory of 3164 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2672 wrote to memory of 3164 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2672 wrote to memory of 3164 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Lader.exe

"C:\Users\Admin\AppData\Local\Temp\Lader.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF8E7.tmp.bat""

C:\Windows\SysWOW64\timeout.exe

timeout 3

Network

Country Destination Domain Proto
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.32.209.4.in-addr.arpa udp
US 8.8.8.8:53 132.250.30.184.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
BE 84.197.94.144:30120 tcp
US 8.8.8.8:53 144.94.197.84.in-addr.arpa udp
BE 84.197.94.144:30120 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
BE 84.197.94.144:30120 tcp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 13.179.89.13.in-addr.arpa udp

Files

memory/816-0-0x0000000000A50000-0x0000000000A9C000-memory.dmp

memory/816-1-0x0000000074470000-0x0000000074C20000-memory.dmp

memory/816-2-0x0000000005480000-0x000000000551C000-memory.dmp

memory/816-3-0x0000000005AD0000-0x0000000006074000-memory.dmp

memory/816-4-0x00000000055C0000-0x0000000005652000-memory.dmp

memory/816-5-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-6-0x0000000005530000-0x000000000553A000-memory.dmp

memory/816-7-0x0000000005750000-0x00000000057A6000-memory.dmp

memory/816-8-0x0000000005A80000-0x0000000005A93000-memory.dmp

memory/816-9-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-10-0x0000000006AE0000-0x0000000006AF2000-memory.dmp

memory/816-11-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-12-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-13-0x0000000008870000-0x00000000088D6000-memory.dmp

memory/816-14-0x0000000074470000-0x0000000074C20000-memory.dmp

memory/816-15-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-16-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-17-0x00000000091B0000-0x0000000009226000-memory.dmp

memory/816-18-0x0000000009130000-0x000000000913E000-memory.dmp

memory/816-19-0x0000000009250000-0x000000000926E000-memory.dmp

memory/816-20-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-21-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-22-0x0000000005810000-0x0000000005820000-memory.dmp

memory/816-23-0x0000000009310000-0x000000000931E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpF8E7.tmp.bat

MD5 3b23888f1b73ff4d9e17f00fa59cc845
SHA1 f7cf18820444f1ca16f3e0ab1516a347f5d6c2ca
SHA256 2983ae98ca4d09246415b4a61a4da0445926a42fa6946956f17f6317be06be5f
SHA512 c25ab1bc93734a15d29fe3979bc497ab23a379b9a278ad6b301827e6af8616b9b8cde0a505027a8cc73d4f1d7bdb4866dd18d20d849f38b9bd5efbc73a1c18af

memory/816-28-0x0000000074470000-0x0000000074C20000-memory.dmp