ardamax | 73a92df3abe0565f65eb72f7d82999007741bb1eff7ca081dd6e784b346bb976

General

Target

19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
Size

1.2MB
MD5

19471f98e68f19bce203dfc964eaaadb
SHA1

c2f4eeb37a05f4e43b6ea825df5afb96bb0dbf5b
SHA256

73a92df3abe0565f65eb72f7d82999007741bb1eff7ca081dd6e784b346bb976
SHA512

d96396ccfd4002d46106b769883f7dba4a1a3a09a6c489b1ee703c73137817bfd5c1361e1a1afdc55de99b42f4727f4b9568f2da0af899da5a3c8959730dad3c
SSDEEP

24576:euIIABU/pT/luS5EEdbb40C82oX3PWcy/4PMn7S+06/FDJU5ve:euINuRT/ltHZbV2oWcy/97SH2DQe

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
behavioral1/files/0x00080000000175ed-18.dat	family_ardamax

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\userinit.exe,iexpIore.exe"	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1720	iexpIore.exe
2160	HSA.exe

Loads dropped DLL 4 IoCs

pid	Process
2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
1720	iexpIore.exe
2160	HSA.exe
1420	WINWORD.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\HSA Start = "C:\\Windows\\SysWOW64\\CTOGAA\\HSA.exe"	HSA.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 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\CTOGAA\HSA.002	iexpIore.exe
File created	C:\Windows\SysWOW64\CTOGAA\HSA.exe	iexpIore.exe
File opened for modification	C:\Windows\SysWOW64\CTOGAA\	HSA.exe
File created	C:\Windows\SysWOW64\iexpIore.exe	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\iexpIore.exe	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\CTOGAA\HSA.004	iexpIore.exe
File created	C:\Windows\SysWOW64\CTOGAA\HSA.001	iexpIore.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.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 4 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	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexpIore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HSA.exe

Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1420	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2160	HSA.exe
Token: SeIncBasePriorityPrivilege	2160	HSA.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1420	WINWORD.EXE
1420	WINWORD.EXE
2160	HSA.exe
2160	HSA.exe
2160	HSA.exe
2160	HSA.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1720	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1720	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1720	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1720	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1420	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	31
PID 2372 wrote to memory of 1420	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	31
PID 2372 wrote to memory of 1420	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	31
PID 2372 wrote to memory of 1420	2372	19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2160	1720	iexpIore.exe	32
PID 1720 wrote to memory of 2160	1720	iexpIore.exe	32
PID 1720 wrote to memory of 2160	1720	iexpIore.exe	32
PID 1720 wrote to memory of 2160	1720	iexpIore.exe	32
PID 1420 wrote to memory of 1528	1420	WINWORD.EXE	36
PID 1420 wrote to memory of 1528	1420	WINWORD.EXE	36
PID 1420 wrote to memory of 1528	1420	WINWORD.EXE	36
PID 1420 wrote to memory of 1528	1420	WINWORD.EXE	36

C:\Users\Admin\AppData\Local\Temp\19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\19471f98e68f19bce203dfc964eaaadb_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\iexpIore.exe
  "C:\Windows\system32\iexpIore.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\CTOGAA\HSA.exe
    "C:\Windows\system32\CTOGAA\HSA.exe"
    3⤵
    - 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:2160
- C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\event 30-04.doc"
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\event 30-04.doc

Filesize
154KB

MD5
0401d564ef74d730cffbaaca249dce70

SHA1
4287c7f00ef70b4acd8d05f808cdadc8786fbf21

SHA256
b71f365fef94334e7893288c3a5fbc3bf2510eb6f549d62679f370fccafcd55b

SHA512
1e0613829bc121d18917d7f261f3d0b9b465149c27a4d7432087b5af2ee7eb63ebb2ce2079f41542d58ff50c7f9aebef0a524a9f1bbc53dcde49497df705febf

Download Submit
C:\Windows\SysWOW64\CTOGAA\HSA.001

Filesize
61KB

MD5
4eb04b9187bbf3e3c33bf95e74eb6262

SHA1
ca5dcaea5ef4ba48c0bb06635c0b5abed4f0f342

SHA256
cf84d5704b350beaf1f2b46dc44bd372141d7554a8958ce22c0a84a3f21f2fe7

SHA512
aeaa608cd4f66ba817a7e8698d17f9801c9cedf99875decff39bc18cebdec3947f02566bdf21d9096e5a6a6b740717ab06d46a2a9605bf8e8fa0fee12fe17e81

Download Submit
C:\Windows\SysWOW64\CTOGAA\HSA.002

Filesize
43KB

MD5
1aed6fee0870288cdb607393fc2f33a1

SHA1
584fd8d5ffbced19dd09b8b71cee9026c0ac65c6

SHA256
02c4eef7045896258d00077e123719aa256c606f4e38c417965ba5f64d48e180

SHA512
15e5b7843b07bcb4a638057b05712c66b285d70ace24ab3a4c125d24d538ace20cfac179accefa417d7790f7a095327affd3cd73d9eacaa632356f95a9fde3b8

Download Submit
C:\Windows\SysWOW64\CTOGAA\HSA.004

Filesize
1KB

MD5
779ff99404e8b8d81c658a4e22e677c2

SHA1
33482d87aff5e13f8d03994cc7b75111fdc4ef48

SHA256
5b9e83a776ae17d5c5feeb695aa7d73e9cf50ef44edb7803e2ef0caf7303366d

SHA512
2f1526f051d8094610af780cfd93b1b9868bc7bc7a7e68f0ee73131c9e656cdab5d30bea0329277a59e5a51cdd6314591ea28508fbad9e6ff4b6de64e1861df0

Download Submit
\Windows\SysWOW64\CTOGAA\HSA.exe

Filesize
1.5MB

MD5
865b02aa4fb68ac150953986e6f63f1c

SHA1
214190642d67f02c349e68f3f3c6ef0e9c2212d7

SHA256
fac58547e80a1b9598261b6d2aa5175653831e507c57b6860bc5d04d2e754dff

SHA512
473dc55a8a8f11d8445cef9cd8cabf8a9b227a6e47994ecfe9c86d41062641668d858e61b7ade1ad2801c5daa13d0630159b7ad241379e111c83564030c0a40e

Download Submit
\Windows\SysWOW64\iexpIore.exe

Filesize
900KB

MD5
1fa7d6fb2e718e5e86ae5779270652da

SHA1
d04d45dec75b82464959221ef7fa090e06983b84

SHA256
9078e7e373e46910c806e2783504e3bf423dc3b71252e72c16487388ff804342

SHA512
ca4ca291ebf63f3dd1a73f8c2d3b6144ef056a3d8a4489d3d56151828912f51db306273b04ceccedcb21a51a286980199b98da83c2c88944d26f930de57ed545

Download Submit
memory/1420-17-0x000000002FD81000-0x000000002FD82000-memory.dmp

Filesize
4KB

Download
memory/1420-21-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2372-16-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads