ardamax | 7ba7b8cb63b0d82f25c66b8f350b182969895ea206b99a06bcff3ea89f92a0a5

General

Target

CRl.exe
Size

821KB
MD5

f42c4e5fc61e8b7bb7d370a64e74fa6b
SHA1

b40714b04fa3f646d42b4ed76b62f784ca865a39
SHA256

2a899a5c72bf148338007d4c58e54deb2d66a93d5a1bf8b7a571d277da3c1590
SHA512

971836a5f02fbe5834510dc62e2a6c5088d017d47a3648d05ac0d97b2911c36e88ba59b81cb44a1cb5724eb5e59836fe9df8792268528ad47fdcd7d1cc02bb4c
SSDEEP

12288:xEWGzWE+z4oM2X7UU1+G6slP9iLAKPBP5NKcoAnWagmgb3LEn8zLPZnW3STF/VR2:qKrUADlP9VKpxNWAWaZgQK43OF7LRqxx

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/0x00070000000234a1-12.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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	CRl.exe

Executes dropped EXE 1 IoCs

pid	Process
1624	APUW.exe

Loads dropped DLL 4 IoCs

pid	Process
1636	CRl.exe
1624	APUW.exe
1624	APUW.exe
1624	APUW.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\APUW Agent = "C:\\Windows\\SysWOW64\\28463\\APUW.exe"	APUW.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\APUW.001	CRl.exe
File created	C:\Windows\SysWOW64\28463\APUW.006	CRl.exe
File created	C:\Windows\SysWOW64\28463\APUW.007	CRl.exe
File created	C:\Windows\SysWOW64\28463\APUW.exe	CRl.exe
File created	C:\Windows\SysWOW64\28463\AKV.exe	CRl.exe
File opened for modification	C:\Windows\SysWOW64\28463	APUW.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	CRl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	APUW.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1624	APUW.exe
Token: SeIncBasePriorityPrivilege	1624	APUW.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1624	APUW.exe
1624	APUW.exe
1624	APUW.exe
1624	APUW.exe
1624	APUW.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 1624	1636	CRl.exe	85
PID 1636 wrote to memory of 1624	1636	CRl.exe	85
PID 1636 wrote to memory of 1624	1636	CRl.exe	85

C:\Users\Admin\AppData\Local\Temp\CRl.exe
"C:\Users\Admin\AppData\Local\Temp\CRl.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:1636
- C:\Windows\SysWOW64\28463\APUW.exe
  "C:\Windows\system32\28463\APUW.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:1624

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\@D050.tmp

Filesize
4KB

MD5
a55cbc0f0125b005ef369020b4c17806

SHA1
010af3e2e84b337e91f5e0c791b01e1d527211ce

SHA256
27cfe74936e4090aafbef07ee45725923f4b1243135e1e3a51e3385dbcd7b637

SHA512
88e5f7905c86d73bc5af028f20c8bf49f700307926c5b92814c245abe08e9c35841116d428ddbd7b957b47ccc8980684c12608b6818e4b6c1c8c0d27d54a07be

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

Filesize
457KB

MD5
46ccfd974518e5849738449034a05a17

SHA1
d391108816aed7ba8f7beb205ad7171c74eae6b2

SHA256
571aae1f8a260909dbc45c67b4c547fc573c07097b36d4e18db0e36d91deccfe

SHA512
773a40a37ebc54cbde7c40ca98001150e78da43726e475f1ee25ef869a39682c0fcd46fb57cf6130151cd8115aa6f2c196e57414affe464fd3b137eb5b317a7a

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

Filesize
494B

MD5
e7609741142ca151e16cd6420db61669

SHA1
8f14a4578f9fe17f8ee971426051b692dfbd5ad2

SHA256
73d1449c6aa176b60b8cb50f48027e9a56477bb1fee23dc19f8c050a8684d5cb

SHA512
1bc45e0e4710d6c84cb77cfc598f87626599289e4ba91ad62aa677a025f5a76d03efd8ffab3ceb3e8dcae3ff005deff57c882e147c0ad06792fa8c92edf89ef4

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

Filesize
8KB

MD5
395bbef326fa5ad1216b23f5debf167b

SHA1
aa4a7334b5a693b3f0d6f47b568e0d13a593d782

SHA256
7c1c4ba8978d3ec53bc6da4d8f9e5e1ca52edf5ccf5ec19ef06b02055ff3b3d1

SHA512
dc3f3d7501feb10623807e89f28a0e38bdbbd4a7e2ad964c8ab33c392bde61896fe40bb7773f6309cd59ad9a686decbd81c15b588ac8d311fd2a273ac9410679

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

Filesize
5KB

MD5
1b5e72f0ebd49cf146f9ae68d792ffe5

SHA1
1e90a69c12b9a849fbbac0670296b07331c1cf87

SHA256
8f4485675fe35b14276f5c8af8a6b42f03cf1b5de638355e4c4b28397385e87e

SHA512
6364f5581de5aaec09b5d1c4e5745193f981ff93cf91e20c6c9ff56566b5d182ccbdacf9aeed1d7a01460eb21619e14ac4ab31b083a951b45b3b7f9d93a62ffc

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

Filesize
912KB

MD5
6768ba61744862704760b66ce8f8fdd4

SHA1
e86cbed8cf20c2a9c76219d0c434bc310ffb2392

SHA256
4cf4bf2b7d2bb4215e255e1f2b1238ad989f3c8a98ebfd5cb033bccf32fedaa0

SHA512
eadb56b633707724ef4f47f8b421b0f3b2afa5a9800fae030f81aefae483eed6b494da470278273f388c3ae346a33cbbfe742924d231dab1c9b42bbefaf95a61

Download Submit
memory/1624-19-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/1624-24-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/1624-28-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/1624-29-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads