ardamax | 47c3ef34e5af85b3c37bb213c9e1916ed4d510f372886b88cc8e06dd612eac7c

General

Target

fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
Size

484KB
MD5

fa8b6bb4cb6d79361cf262af2a49d107
SHA1

149dc01745056d2879a042f6439c67926a7578e4
SHA256

47c3ef34e5af85b3c37bb213c9e1916ed4d510f372886b88cc8e06dd612eac7c
SHA512

cc69c684099fa18d9014927aac661136e0c4f303c61f0c6cb77aa1dbb6cf40973f3034f19f492193d48f047eb14931b5a482dc24c65d68bf4e628544e0e9a40e
SSDEEP

12288:aths4juzSfHys+1f1dVCtPsqc8v5qMd96YJcEpX2bP:gs4juzSfv+qtLc8v5DH6sX2bP

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/0x0007000000023461-12.dat	family_ardamax

Checks computer location settings 2 TTPs 2 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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	GMUM.exe

Executes dropped EXE 1 IoCs

pid	Process
1908	GMUM.exe

Loads dropped DLL 5 IoCs

pid	Process
3088	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
1908	GMUM.exe
1908	GMUM.exe
1908	GMUM.exe
1544	WerFault.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\GMUM Agent = "C:\\Windows\\SysWOW64\\28463\\GMUM.exe"	GMUM.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 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\28463\GMUM.007	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\28463\GMUM.exe	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\28463\AKV.exe	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\28463	GMUM.exe
File created	C:\Windows\SysWOW64\28463\GMUM.001	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\28463\GMUM.006	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1544	1908	WerFault.exe	84

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: 33	1908	GMUM.exe
Token: SeIncBasePriorityPrivilege	1908	GMUM.exe
Token: SeIncBasePriorityPrivilege	1908	GMUM.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1908	GMUM.exe
1908	GMUM.exe
1908	GMUM.exe
1908	GMUM.exe
1908	GMUM.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 1908	3088	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe	84
PID 3088 wrote to memory of 1908	3088	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe	84
PID 3088 wrote to memory of 1908	3088	fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe	84
PID 1908 wrote to memory of 3496	1908	GMUM.exe	96
PID 1908 wrote to memory of 3496	1908	GMUM.exe	96
PID 1908 wrote to memory of 3496	1908	GMUM.exe	96

C:\Users\Admin\AppData\Local\Temp\fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa8b6bb4cb6d79361cf262af2a49d107_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\28463\GMUM.exe
  "C:\Windows\system32\28463\GMUM.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 1072
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1544
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del C:\Windows\SysWOW64\28463\GMUM.exe > nul
    3⤵
    PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1908 -ip 1908
1⤵
PID:1116

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\@412F.tmp

Filesize
4KB

MD5
25530555085337eb644b061f239aa9d4

SHA1
8d91e099aba5439d4bfa8bce464c94e3e1acf620

SHA256
3fb6b438ad1530abdd068bffb303fb8a4de51430e0e18ddb6b1a0469ffab8325

SHA512
b1f9de0c276533a5a7070aeb2b6415cc1c0bdd2baf5e0645c6ac5ba767cab0d76e5b4461800d89724992af2c863294ada3c1eb2e4516183fe2010c33d47d6a2a

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

Filesize
395KB

MD5
d63cc8679a63448db1c64252e14e4ab5

SHA1
10b3a9ac4bc16e8ac1cd05e50b4d540fa3ef223e

SHA256
29b3646a556879a4a48e4f2f81e09179c34ac2051ed3e4f4c28e293092470d3d

SHA512
cb1911e1a77fb9be560aa4fd8bbef65e181b6d4438d65657501dbcd8dbf488ba01738a7222f35f8d4317e8df8c6f307d9e3623d6e3e45753e138b80fb68ff768

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

Filesize
416B

MD5
c25e8d6fdf7c534b7cd403e6b25d9b1e

SHA1
7dd551370c5dc080504707577998a67e99a59097

SHA256
e3512ca1ee6c4239dff3deac31a7dc54bb1d69b731c7bf539b296f8e7c2162ee

SHA512
fb2145f4178358d90d6302fcec221a10aed0ee0841e222fe332a8dffa1c97d9b1d81a5744d27b20b520a189162286678316d8ba110a7af4645fb72728f71d06d

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

Filesize
8KB

MD5
81e20f4361cf8f5a57812871c24d945e

SHA1
5d7877d6959ab26599b05795a71633f00c37a3da

SHA256
e6e8b4a29dccb3531f58c75b754caf7f26afe3e7043239305fd0ae7ab2f7571d

SHA512
69b1d75ab7123054bf98cf3a0f2cc7a0749cda8d85ebdef85be7d89f1454154ce29070907b934727a6c5276ff430e94810b87a5634d25d8529df9ee36fd20818

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

Filesize
5KB

MD5
e9fbdcc2f5fb657fa519b3f5c69fc52d

SHA1
c49cca77b46a59d620711de7564d43e5dafcd2b5

SHA256
cc440cfc4ce1a1ff503cc9e8937c59aae64bfce4daa3e7dc757220a25cadc2e4

SHA512
913759967e16b99d8ea66433e5dc99d5ddbf737be6784306e67c2b23a525b7a578fcae1028221d3209abc452ff30508eb750c62113c3868a7af36b544e525fb1

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

Filesize
473KB

MD5
97d8ad45f48b4b28a93aab94699b7168

SHA1
8b69b7fd7c008b95d12386f6da415097e72151de

SHA256
661df22a66b2062b233eb0bd9665de924cfe0ac9c6ba29e20ffef24f817f9331

SHA512
3351eac970bab391de410fcf1937da75d2e4722b808f10332f487ddfe469544e32e7d4ed0e5bdc19bd5f472cffcc55ca1498c95945b4e9c4ceff6ff5cc521c8a

Download Submit
memory/1908-23-0x0000000002210000-0x0000000002211000-memory.dmp

Filesize
4KB

Download
memory/1908-27-0x0000000002210000-0x0000000002211000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads