Malware Analysis Report

2025-08-10 14:19

Sample ID 241003-1xagnssdnd
Target 76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN
SHA256 76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2aceb
Tags
ramnit banker discovery spyware stealer trojan upx worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2aceb

Threat Level: Known bad

The file 76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN was found to be: Known bad.

Malicious Activity Summary

ramnit banker discovery spyware stealer trojan upx worm

Ramnit

Executes dropped EXE

Loads dropped DLL

UPX packed file

Drops file in System32 directory

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-03 22:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-03 22:01

Reported

2024-10-03 22:03

Platform

win7-20240903-en

Max time kernel

73s

Max time network

17s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

Signatures

Ramnit

trojan spyware stealer worm banker ramnit

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2844 set thread context of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe

UPX packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32mgr.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2148 wrote to memory of 2184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2184 wrote to memory of 2844 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2184 wrote to memory of 2844 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2184 wrote to memory of 2844 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2184 wrote to memory of 2844 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2844 wrote to memory of 2684 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

"C:\Windows\SysWOW64\rundll32mgr.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 100

Network

N/A

Files

memory/2184-1-0x00000000627F0000-0x0000000062835000-memory.dmp

memory/2184-2-0x00000000627F0000-0x0000000062835000-memory.dmp

\Windows\SysWOW64\rundll32mgr.exe

MD5 a758bae992041958e59e16e303fccb6e
SHA1 ed836b5a0d9af7107b86969691078bf9eebf9a3c
SHA256 393f0b4ef739ec6b1f6eb242586d40e7d927211d6c6100fa1f3642a76a83b615
SHA512 8e4efadbe72e6a6eec55a81d075fc903c32f46ca950989c7029c3df3bb6a7adef97d69bbc5d93fff38dc5aed18fa011efbb31d39f440f2003b73ff5a280bf48a

memory/2844-12-0x0000000000020000-0x0000000000023000-memory.dmp

memory/2844-11-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2184-10-0x00000000001C0000-0x0000000000212000-memory.dmp

memory/2684-17-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2684-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2684-21-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2684-26-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2844-29-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2684-30-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2684-25-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2684-24-0x0000000000400000-0x0000000000463000-memory.dmp

\Users\Admin\AppData\Local\Temp\~TMEBD5.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2684-33-0x000000007734F000-0x0000000077351000-memory.dmp

memory/2684-34-0x0000000077350000-0x0000000077351000-memory.dmp

memory/2684-35-0x0000000077350000-0x0000000077352000-memory.dmp

\Users\Admin\AppData\Local\Temp\~TMEC43.tmp

MD5 9b98d47916ead4f69ef51b56b0c2323c
SHA1 290a80b4ded0efc0fd00816f373fcea81a521330
SHA256 96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA512 68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

memory/2684-41-0x0000000074DD0000-0x0000000074EE0000-memory.dmp

memory/2684-40-0x0000000074E64000-0x0000000074E65000-memory.dmp

memory/2684-42-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2684-44-0x0000000074DD0000-0x0000000074EE0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-03 22:01

Reported

2024-10-03 22:03

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

95s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

Signatures

Ramnit

trojan spyware stealer worm banker ramnit

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4132 set thread context of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe

UPX packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32mgr.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1148 wrote to memory of 1192 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1148 wrote to memory of 1192 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1148 wrote to memory of 1192 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1192 wrote to memory of 4132 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 1192 wrote to memory of 4132 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 1192 wrote to memory of 4132 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 4132 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32mgr.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\76bed869ea5c171ad0dd786c3b75ff8c5290934fabf9a3c3ac5b977935a2acebN.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

"C:\Windows\SysWOW64\rundll32mgr.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2564 -ip 2564

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2564 -s 304

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 133.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4132-5-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4132-6-0x00000000001C0000-0x00000000001C3000-memory.dmp

C:\Windows\SysWOW64\rundll32mgr.exe

MD5 a758bae992041958e59e16e303fccb6e
SHA1 ed836b5a0d9af7107b86969691078bf9eebf9a3c
SHA256 393f0b4ef739ec6b1f6eb242586d40e7d927211d6c6100fa1f3642a76a83b615
SHA512 8e4efadbe72e6a6eec55a81d075fc903c32f46ca950989c7029c3df3bb6a7adef97d69bbc5d93fff38dc5aed18fa011efbb31d39f440f2003b73ff5a280bf48a

memory/1192-1-0x00000000627F0000-0x0000000062835000-memory.dmp

memory/2564-13-0x0000000000400000-0x0000000000463000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\~TM68EB.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

memory/4132-19-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4132-18-0x00000000001C0000-0x00000000001C3000-memory.dmp

memory/2564-15-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2564-14-0x0000000000400000-0x0000000000463000-memory.dmp

memory/2564-9-0x0000000000400000-0x0000000000463000-memory.dmp