ardamax | 743e857a643a50c700f561148fc96d437fb2b984dce2bc355920802d307b80dd

General

Target

STARBO~1.exe
Size

597KB
MD5

869ec2a7bb3df74d133a85505b2b61e4
SHA1

70b6105fc8271dfdca02b294843d4063b771bc4c
SHA256

c5e778dcb831164c406ca2eb08b4a3bf50da668d7d78fb3047e7f0803668fb5d
SHA512

8238d7c40b07994f9fd0bcec76364f7cba35c2c3f3dff13cd6f09c84a4f87c176d174314c1184d2cfd418e40cec6bac6a65495786d2e5bec2cc3dfb0cc37ef08
SSDEEP

12288:lQpnmL7eJR+WPjw9VWF7DuzzCIsDE4xuPvFcjQMc4NT/HRBVGiQS9:+Iqr+kjw98FvMCI8ENVc0McYHzVGlY

Score

10^/10

ardamax discovery keylogger persistence stealer

Malware Config

Signatures

Ardamax
A keylogger first seen in 2013.
keylogger stealer ardamax

Ardamax main executable 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c1e-12.dat	family_ardamax

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	STARBO~1.exe

Executes dropped EXE 1 IoCs

pid	Process
4232	IAUT.exe

Loads dropped DLL 4 IoCs

pid	Process
4636	STARBO~1.exe
4232	IAUT.exe
4232	IAUT.exe
4232	IAUT.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IAUT Agent = "C:\\Windows\\SysWOW64\\28463\\IAUT.exe"	IAUT.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\28463\IAUT.001	STARBO~1.exe
File created	C:\Windows\SysWOW64\28463\IAUT.006	STARBO~1.exe
File created	C:\Windows\SysWOW64\28463\IAUT.007	STARBO~1.exe
File created	C:\Windows\SysWOW64\28463\IAUT.exe	STARBO~1.exe
File created	C:\Windows\SysWOW64\28463\AKV.exe	STARBO~1.exe
File opened for modification	C:\Windows\SysWOW64\28463	IAUT.exe
File created	C:\Windows\SysWOW64\28463\IAUT.009	IAUT.exe
File opened for modification	C:\Windows\SysWOW64\28463\IAUT.009	IAUT.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	STARBO~1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IAUT.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4232	IAUT.exe
Token: SeIncBasePriorityPrivilege	4232	IAUT.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4232	IAUT.exe
4232	IAUT.exe
4232	IAUT.exe
4232	IAUT.exe
4232	IAUT.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 4232	4636	STARBO~1.exe	85
PID 4636 wrote to memory of 4232	4636	STARBO~1.exe	85
PID 4636 wrote to memory of 4232	4636	STARBO~1.exe	85

C:\Users\Admin\AppData\Local\Temp\STARBO~1.exe
"C:\Users\Admin\AppData\Local\Temp\STARBO~1.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\28463\IAUT.exe
  "C:\Windows\system32\28463\IAUT.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\@8647.tmp

Filesize
4KB

MD5
67ce8b2ea53b0aa6ec6213a2b62b9d95

SHA1
e4ac32be20e72d1c12d0ba6919d5fd209a85d009

SHA256
2daed63cd25eb939ae46c5a1caf7fe07bde609a859720884b51d324ff45fc4f6

SHA512
760bef7efb0750d860909f2c92ef2190d7a63b8d07d83ba17997a2cd5c92f509f6c645d86bfbf22c3baff8ebabbf14856f8f4998b9d7132db19785190071c29e

Download Submit
C:\Windows\SysWOW64\28463\AKV.exe

Filesize
393KB

MD5
1533823edeb16a2f6130b0eac0a74b1a

SHA1
c00306974e0acda509d547d8947abbd19e848827

SHA256
e330dedede24e626c90b2894697df4d81228d583203b80775de310dd315f6a9a

SHA512
2d72b0b822de528943348881aa2f0855ef4d306df52f343ebbd8d8b8845da4a79a01efd88c1abf7645e4a72c4069d6d5d4c4d85f1dcd580ac61a9e2657303a87

Download Submit
C:\Windows\SysWOW64\28463\IAUT.001

Filesize
398B

MD5
307738348df1222396bb982e93f04968

SHA1
d2b7cd116fe14c70a3ed2216782c19666030122a

SHA256
3828dd38c70bca510ae600017414af855390eacc5386b8e1e71e60e5ca9c4136

SHA512
1f4bb61390a0c261953c21b0a6a792abdf53d1dc4c03b30816e2295eb9ddf558d876734a077e59708d3bb7b6899e865370dd44ca8217f83099e5b644338b1306

Download Submit
C:\Windows\SysWOW64\28463\IAUT.006

Filesize
7KB

MD5
9bb764979044a263709a095f707fbf7f

SHA1
6a6ff5611d93c860401b165ff85957fbb340f14c

SHA256
6f55fcdfbdba9aef5252dfbb9a0f1ac9c83dac472659223ae5a7840484e2d95b

SHA512
a764c11ce03910f372ab7a19f251dbfcd369ad59a7e19b8f1a5825ef44f263d0c693f6bb69332bcb545ea397fc10497cbe4a83402a60971a07bdeb01ce19c057

Download Submit
C:\Windows\SysWOW64\28463\IAUT.007

Filesize
5KB

MD5
c14f089be45a2669a608c0cb4b5ed402

SHA1
6c3168f0af173afbc295848ad1bdb480c510097c

SHA256
dfd377848164271d02259d4481e7978a12392f71f7bcadaecae247d962127d08

SHA512
3c3bc020b74bd76eaa7b5fe577371fef420a62afa9512ef6a0d148b902fe98f8372358ab0f1213e389ad44d52a631ed117a6921be51d66734059cbfdef33ead9

Download Submit
C:\Windows\SysWOW64\28463\IAUT.exe

Filesize
472KB

MD5
a10c0ee1f0006cd3f58809ee8a6ab81f

SHA1
c4dcb5bffaaea97f7c6d850905a03c001a452d9a

SHA256
9ae3fe10cb437ef5f98a8731c63cd21a3a0791d231428bd264422acd4b57268f

SHA512
ece264bd37989f52bef0446f378b9c7f2d9f8b6af52cf9ba9234540b2a51b3b0faaa7f3e99ee854371a91650105660deeb0748a82d29733b5f69de15ba8a4157

Download Submit
memory/4232-23-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/4232-27-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads