Malware Analysis Report

2025-01-19 07:04

Sample ID 240625-v6b4zatcjf
Target 0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118
SHA256 6d67ce4b59e23a9a661253c7b1030a22119a48eb5d46a4d6ca8a9351b58b3129
Tags
ramnit banker spyware stealer trojan worm
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

6d67ce4b59e23a9a661253c7b1030a22119a48eb5d46a4d6ca8a9351b58b3129

Threat Level: Known bad

The file 0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

ramnit banker spyware stealer trojan worm

Ramnit

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-25 17:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 17:35

Reported

2024-06-25 17:38

Platform

win7-20240611-en

Max time kernel

121s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.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

Loads dropped DLL

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

Program crash

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 768 -s 164

Network

N/A

Files

\Windows\SysWOW64\rundll32mgr.exe

MD5 33cd65ebd943a41a3b65fa1ccfce067c
SHA1 715d78b89cadbbd517fec3a48f415e1dc00f92bb
SHA256 43c91f0a793c2776757ecec287a2d50cbf331d27f08aa559ffc160a417d3d1ae
SHA512 ea7c5b04eb5dd99ff38f7699cceef49680c094beab01751a92541e56293f7ecc3381aeca9a8863f95b75b548c0d02cf5127eaaf4cc1f784974981fade9ebeaf2

memory/1696-2-0x0000000010000000-0x0000000010037000-memory.dmp

memory/1696-3-0x0000000000400000-0x000000000048A000-memory.dmp

memory/768-10-0x0000000000400000-0x0000000000489124-memory.dmp

memory/768-13-0x0000000000400000-0x0000000000489124-memory.dmp

memory/768-12-0x0000000000400000-0x000000000048A000-memory.dmp

\Users\Admin\AppData\Local\Temp\~TM14C8.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/768-17-0x0000000000400000-0x0000000000489124-memory.dmp

\Users\Admin\AppData\Local\Temp\~TM1508.tmp

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

memory/768-23-0x0000000000400000-0x0000000000489124-memory.dmp

memory/768-22-0x0000000000400000-0x0000000000489124-memory.dmp

memory/768-25-0x0000000000400000-0x000000000048A000-memory.dmp

memory/1696-26-0x0000000000400000-0x000000000048A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 17:35

Reported

2024-06-25 17:38

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.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

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

Program crash

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1492 wrote to memory of 2688 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1492 wrote to memory of 2688 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1492 wrote to memory of 2688 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2688 wrote to memory of 3368 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2688 wrote to memory of 3368 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2688 wrote to memory of 3368 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ef1b3c813f79bd98854f8388deca90f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3368 -ip 3368

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3368 -s 372

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 35.166.122.92.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 225.162.46.104.in-addr.arpa udp

Files

memory/2688-1-0x0000000010000000-0x0000000010037000-memory.dmp

C:\Windows\SysWOW64\rundll32mgr.exe

MD5 33cd65ebd943a41a3b65fa1ccfce067c
SHA1 715d78b89cadbbd517fec3a48f415e1dc00f92bb
SHA256 43c91f0a793c2776757ecec287a2d50cbf331d27f08aa559ffc160a417d3d1ae
SHA512 ea7c5b04eb5dd99ff38f7699cceef49680c094beab01751a92541e56293f7ecc3381aeca9a8863f95b75b548c0d02cf5127eaaf4cc1f784974981fade9ebeaf2

memory/3368-5-0x0000000000400000-0x0000000000489124-memory.dmp

memory/3368-7-0x0000000000400000-0x0000000000489124-memory.dmp

memory/3368-6-0x0000000000400000-0x000000000048A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\~TM3A98.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219