Malware Analysis Report

2024-10-18 23:04

Sample ID 240122-hcy1esage8
Target 6ef9b0bb0b132bd677d8cabb3af3c2a1
SHA256 78e726ddb24d16ad305dc68f98acb0e8c126aee5f609e69489e87220d9ba1de2
Tags
ardamax discovery keylogger persistence stealer
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

78e726ddb24d16ad305dc68f98acb0e8c126aee5f609e69489e87220d9ba1de2

Threat Level: Known bad

The file 6ef9b0bb0b132bd677d8cabb3af3c2a1 was found to be: Known bad.

Malicious Activity Summary

ardamax discovery keylogger persistence stealer

Ardamax

Ardamax main executable

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Checks installed software on the system

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-22 06:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-22 06:36

Reported

2024-01-22 06:38

Platform

win7-20231215-en

Max time kernel

120s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\creador adarve.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\RVG Start = "C:\\Windows\\SysWOW64\\RDPNCY\\RVG.exe" C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\RDPNCY\RVG.001 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.002 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.exe C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File opened for modification C:\Windows\SysWOW64\RDPNCY\ C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.004 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2896 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Windows\SysWOW64\RDPNCY\RVG.exe
PID 2896 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Windows\SysWOW64\RDPNCY\RVG.exe
PID 2896 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Windows\SysWOW64\RDPNCY\RVG.exe
PID 2896 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Windows\SysWOW64\RDPNCY\RVG.exe
PID 2896 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Users\Admin\AppData\Local\Temp\creador adarve.exe
PID 2896 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Users\Admin\AppData\Local\Temp\creador adarve.exe
PID 2896 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Users\Admin\AppData\Local\Temp\creador adarve.exe
PID 2896 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe C:\Users\Admin\AppData\Local\Temp\creador adarve.exe
PID 2708 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\creador adarve.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
PID 2708 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\creador adarve.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
PID 2708 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\creador adarve.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe

"C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe"

C:\Windows\SysWOW64\RDPNCY\RVG.exe

"C:\Windows\system32\RDPNCY\RVG.exe"

C:\Users\Admin\AppData\Local\Temp\creador adarve.exe

"C:\Users\Admin\AppData\Local\Temp\creador adarve.exe"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe

dw20.exe -x -s 496

Network

N/A

Files

\Windows\SysWOW64\RDPNCY\RVG.exe

MD5 51d04d2fd0eb43ae1776d566bd6c5fff
SHA1 52d98a6c77a4d521f48bf0d874deb6cb0c647447
SHA256 6b6e193d419a02a8482c49f2a6fb5520e1a1e10c17a259b45069a02eb0e1fb47
SHA512 c26d5116274e7b0094586123816b5c3c75e583e424e7cba8aabd4867d7947073f0608948cf83cb44f3994d6eb3b2c21954a9a20e85d60f6787b41b8d3a8e870c

\Windows\SysWOW64\RDPNCY\RVG.001

MD5 31c866d8e4448c28ae63660a0521cd92
SHA1 0e4dcb44e3c8589688b8eacdd8cc463a920baab9
SHA256 dc0eaf9d62f0e40b6522d28b2e06b39ff619f9086ea7aa45fd40396a8eb61aa1
SHA512 1076da7f8137a90b5d3bbbbe2b24fd9774de6adbcdfd41fd55ae90c70b9eb4bbf441732689ad25e5b3048987bfb1d63ba59d5831a04c6d84cb05bbfd2d32f839

C:\Users\Admin\AppData\Local\Temp\creador adarve.exe

MD5 3b0fa287b532c380c12a2292af7d08fc
SHA1 38e76805d9fc3beee43cbbac55c1b88043d9b505
SHA256 46d5fe242d84aaf09222c3a2b1896cacbea538312fa0b5de3ab1860ba3d7155a
SHA512 880d14c510ba9d8adc2f1bd96aa471f4b0c89fd4ce621152b50a0d0cfad111059bd2a4c9f1c4769cf96b599e8d2d4c79998685a7b7b165c8901d93237e55a1d7

C:\Users\Admin\AppData\Local\Temp\creador adarve.exe

MD5 e913ba237c90f9d0b378e826fe93807b
SHA1 87094ae3fb5341ea3f0e900115f55958664227ab
SHA256 8d79af37763ff0f6a8f46dbcd5ce2666246c5d02a819d7b6366ea23d03960238
SHA512 d5a9a49e302f5332238ef039c846d1b46baa551400dd88188294dca61ffb16624cc69cfba97b25e1b3a41b9bd9dc97c1564c81aff90bf4ba218b6300f916cc4d

memory/2520-14-0x0000000000240000-0x0000000000241000-memory.dmp

C:\Windows\SysWOW64\RDPNCY\RVG.exe

MD5 0aaffc12ef1b416b9276bdc3fdec9dff
SHA1 9f38d7cf6241d867da58f89db9ff26544314b938
SHA256 42b33dd905c5668c2518a6a7d407fb10c303cfedeaefcd7b6e4c7cc1b891c73b
SHA512 bbde0986b298c6172e7c8e3f938db9425f54cca097e280736e1ba289afd06a0b86f7cbc91f6d46458bc8e75069c12cda1cf808acf3b6c773b0661d081136ee7c

C:\Windows\SysWOW64\RDPNCY\RVG.004

MD5 5235b2a320917546d361fec9f4d00de4
SHA1 3e1ec15b81dd2baba12bc19e7eac8319bfa5370d
SHA256 74c4591134f4bd771e2bbde7e31c48f780909fd7e76389949b4388127bd79535
SHA512 bfc91323bc9015121f9a5c73647288e84e68d0e97bd3f2ebf87a412ca277e3e7ff48f9602673db1ccd5481a7448f999c9b8c52a6a833a5f604a52e0f2304001d

C:\Windows\SysWOW64\RDPNCY\RVG.002

MD5 093e599a1281e943ce1592f61d9591af
SHA1 6896810fe9b7efe4f5ae68bf280fec637e97adf5
SHA256 1ac0964d97b02204f4d4ae79cd5244342f1a1798f5846e9dd7f3448d4177a009
SHA512 64cb58fbf6295d15d9ee6a8a7a325e7673af7ee02e4ece8da5a95257f666566a425b348b802b78ac82e7868ba7923f85255c2c31e548618afa9706c1f88d34dc

memory/2708-22-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/2708-23-0x0000000001DE0000-0x0000000001E60000-memory.dmp

memory/2708-24-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/2708-25-0x0000000001DE0000-0x0000000001E60000-memory.dmp

memory/2708-26-0x0000000001DE0000-0x0000000001E60000-memory.dmp

memory/2988-27-0x0000000000260000-0x0000000000261000-memory.dmp

memory/2520-28-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2708-29-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-22 06:36

Reported

2024-01-22 06:38

Platform

win10v2004-20231215-en

Max time kernel

135s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe"

Signatures

Ardamax

keylogger stealer ardamax

Ardamax main executable

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\creador adarve.exe N/A

Loads dropped DLL

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RVG Start = "C:\\Windows\\SysWOW64\\RDPNCY\\RVG.exe" C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\RDPNCY\RVG.004 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.001 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.002 C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File created C:\Windows\SysWOW64\RDPNCY\RVG.exe C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe N/A
File opened for modification C:\Windows\SysWOW64\RDPNCY\ C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\RDPNCY\RVG.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe

"C:\Users\Admin\AppData\Local\Temp\6ef9b0bb0b132bd677d8cabb3af3c2a1.exe"

C:\Windows\SysWOW64\RDPNCY\RVG.exe

"C:\Windows\system32\RDPNCY\RVG.exe"

C:\Users\Admin\AppData\Local\Temp\creador adarve.exe

"C:\Users\Admin\AppData\Local\Temp\creador adarve.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

C:\Windows\SysWOW64\RDPNCY\RVG.exe

MD5 0aaffc12ef1b416b9276bdc3fdec9dff
SHA1 9f38d7cf6241d867da58f89db9ff26544314b938
SHA256 42b33dd905c5668c2518a6a7d407fb10c303cfedeaefcd7b6e4c7cc1b891c73b
SHA512 bbde0986b298c6172e7c8e3f938db9425f54cca097e280736e1ba289afd06a0b86f7cbc91f6d46458bc8e75069c12cda1cf808acf3b6c773b0661d081136ee7c

C:\Users\Admin\AppData\Local\Temp\creador adarve.exe

MD5 e913ba237c90f9d0b378e826fe93807b
SHA1 87094ae3fb5341ea3f0e900115f55958664227ab
SHA256 8d79af37763ff0f6a8f46dbcd5ce2666246c5d02a819d7b6366ea23d03960238
SHA512 d5a9a49e302f5332238ef039c846d1b46baa551400dd88188294dca61ffb16624cc69cfba97b25e1b3a41b9bd9dc97c1564c81aff90bf4ba218b6300f916cc4d

C:\Windows\SysWOW64\RDPNCY\RVG.001

MD5 31c866d8e4448c28ae63660a0521cd92
SHA1 0e4dcb44e3c8589688b8eacdd8cc463a920baab9
SHA256 dc0eaf9d62f0e40b6522d28b2e06b39ff619f9086ea7aa45fd40396a8eb61aa1
SHA512 1076da7f8137a90b5d3bbbbe2b24fd9774de6adbcdfd41fd55ae90c70b9eb4bbf441732689ad25e5b3048987bfb1d63ba59d5831a04c6d84cb05bbfd2d32f839

C:\Windows\SysWOW64\RDPNCY\RVG.002

MD5 093e599a1281e943ce1592f61d9591af
SHA1 6896810fe9b7efe4f5ae68bf280fec637e97adf5
SHA256 1ac0964d97b02204f4d4ae79cd5244342f1a1798f5846e9dd7f3448d4177a009
SHA512 64cb58fbf6295d15d9ee6a8a7a325e7673af7ee02e4ece8da5a95257f666566a425b348b802b78ac82e7868ba7923f85255c2c31e548618afa9706c1f88d34dc

C:\Windows\SysWOW64\RDPNCY\RVG.004

MD5 5235b2a320917546d361fec9f4d00de4
SHA1 3e1ec15b81dd2baba12bc19e7eac8319bfa5370d
SHA256 74c4591134f4bd771e2bbde7e31c48f780909fd7e76389949b4388127bd79535
SHA512 bfc91323bc9015121f9a5c73647288e84e68d0e97bd3f2ebf87a412ca277e3e7ff48f9602673db1ccd5481a7448f999c9b8c52a6a833a5f604a52e0f2304001d

memory/4428-25-0x0000000000740000-0x0000000000741000-memory.dmp

memory/3420-27-0x00007FFAFD620000-0x00007FFAFDFC1000-memory.dmp

memory/3420-28-0x00000000015B0000-0x00000000015C0000-memory.dmp

memory/3420-29-0x000000001BEC0000-0x000000001BF66000-memory.dmp

memory/3420-30-0x00007FFAFD620000-0x00007FFAFDFC1000-memory.dmp

memory/3420-31-0x000000001C460000-0x000000001C92E000-memory.dmp

memory/3420-32-0x000000001CA30000-0x000000001CACC000-memory.dmp

memory/3420-33-0x00000000018E0000-0x00000000018E8000-memory.dmp

memory/3420-34-0x000000001CB90000-0x000000001CBDC000-memory.dmp

memory/3420-35-0x00000000015B0000-0x00000000015C0000-memory.dmp

memory/3420-36-0x00000000015B0000-0x00000000015C0000-memory.dmp

memory/4428-37-0x0000000000740000-0x0000000000741000-memory.dmp

memory/3420-38-0x00007FFAFD620000-0x00007FFAFDFC1000-memory.dmp

memory/3420-39-0x00007FFAFD620000-0x00007FFAFDFC1000-memory.dmp

memory/3420-40-0x00000000015B0000-0x00000000015C0000-memory.dmp

memory/3420-41-0x00000000015B0000-0x00000000015C0000-memory.dmp