a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70

General

Target

a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe
Size

298KB
MD5

4144612c5b2a095da028d36e54ef0a78
SHA1

4f223e9b4cf0847cac182870512ff19e44395119
SHA256

a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70
SHA512

3234507d9c25c80d52965026bdc7ed9fe0bfd93464172cd0515e24deda596c9c77eb6e4ddf41383bf7a903935ef1bb48c88162156112fb479cd43213651280ef
SSDEEP

6144:CJlWTQXs31lALDBwFcC6nt/HVNVoi0567mZ/CMHX/5jaT1NP:eNXSlASj6t/HV8iU/zHxjaRh

Score

9^/10

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3492-22-0x0000000010000000-0x000000001008A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3492-24-0x0000000010000000-0x000000001008A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Detects executables packed with VMProtect. 3 IoCs

resource	yara_rule
behavioral2/memory/2424-0-0x0000000000400000-0x0000000000495000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/2424-1-0x0000000000400000-0x0000000000495000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/files/0x0005000000022f40-7.dat	INDICATOR_EXE_Packed_VMProtect

Deletes itself 1 IoCs

pid	Process
2708	ihhluke.exe

Executes dropped EXE 2 IoCs

pid	Process
2708	ihhluke.exe
3492	kaalc.exe

Loads dropped DLL 1 IoCs

pid	Process
3492	kaalc.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HFF = "c:\\Program Files\\mdbju\\kaalc.exe \"c:\\Program Files\\mdbju\\kaalc.dll\",FindFrame"	kaalc.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\p:	kaalc.exe
File opened (read-only)	\??\q:	kaalc.exe
File opened (read-only)	\??\u:	kaalc.exe
File opened (read-only)	\??\v:	kaalc.exe
File opened (read-only)	\??\w:	kaalc.exe
File opened (read-only)	\??\y:	kaalc.exe
File opened (read-only)	\??\n:	kaalc.exe
File opened (read-only)	\??\j:	kaalc.exe
File opened (read-only)	\??\k:	kaalc.exe
File opened (read-only)	\??\t:	kaalc.exe
File opened (read-only)	\??\x:	kaalc.exe
File opened (read-only)	\??\z:	kaalc.exe
File opened (read-only)	\??\h:	kaalc.exe
File opened (read-only)	\??\b:	kaalc.exe
File opened (read-only)	\??\g:	kaalc.exe
File opened (read-only)	\??\l:	kaalc.exe
File opened (read-only)	\??\r:	kaalc.exe
File opened (read-only)	\??\a:	kaalc.exe
File opened (read-only)	\??\i:	kaalc.exe
File opened (read-only)	\??\m:	kaalc.exe
File opened (read-only)	\??\o:	kaalc.exe
File opened (read-only)	\??\s:	kaalc.exe
File opened (read-only)	\??\e:	kaalc.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	kaalc.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\mdbju	ihhluke.exe
File created	\??\c:\Program Files\mdbju\kaalc.dll	ihhluke.exe
File created	\??\c:\Program Files\mdbju\kaalc.exe	ihhluke.exe
File opened for modification	\??\c:\Program Files\mdbju\kaalc.exe	ihhluke.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kaalc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kaalc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2516	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3492	kaalc.exe
3492	kaalc.exe
3492	kaalc.exe
3492	kaalc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	kaalc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2424	a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe
2708	ihhluke.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2448	2424	a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe	85
PID 2424 wrote to memory of 2448	2424	a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe	85
PID 2424 wrote to memory of 2448	2424	a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe	85
PID 2448 wrote to memory of 2516	2448	cmd.exe	87
PID 2448 wrote to memory of 2516	2448	cmd.exe	87
PID 2448 wrote to memory of 2516	2448	cmd.exe	87
PID 2448 wrote to memory of 2708	2448	cmd.exe	88
PID 2448 wrote to memory of 2708	2448	cmd.exe	88
PID 2448 wrote to memory of 2708	2448	cmd.exe	88
PID 2708 wrote to memory of 3492	2708	ihhluke.exe	89
PID 2708 wrote to memory of 3492	2708	ihhluke.exe	89
PID 2708 wrote to memory of 3492	2708	ihhluke.exe	89

C:\Users\Admin\AppData\Local\Temp\a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe
"C:\Users\Admin\AppData\Local\Temp\a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ihhluke.exe "C:\Users\Admin\AppData\Local\Temp\a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2516
- - C:\Users\Admin\AppData\Local\Temp\ihhluke.exe
    C:\Users\Admin\AppData\Local\Temp\\ihhluke.exe "C:\Users\Admin\AppData\Local\Temp\a291a36d884b6b73d4609a95353e4233cdfe34578ffb65d76312ba4ac6570b70.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - \??\c:\Program Files\mdbju\kaalc.exe
      "c:\Program Files\mdbju\kaalc.exe" "c:\Program Files\mdbju\kaalc.dll",FindFrame C:\Users\Admin\AppData\Local\Temp\ihhluke.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3492

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

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\mdbju\kaalc.dll

Filesize
236KB

MD5
5badd56d7a0d0ea5f09b9a9fc129f5da

SHA1
51451a3eadcd0a332d6eee713e62268ce7a22e1d

SHA256
6dbca6d03d93992e303527248237ecf4b1480c28c57140556f6b07bda919d635

SHA512
3a02642f9423993ae6e67111a817ff5233888308239e1dc6097072f7c0bf0d82952bf46b317e2bd5ca97ea3a4a39596c61d5692b95545391e53a79b360d8cc36

Download Submit
C:\Program Files\mdbju\kaalc.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Users\Admin\AppData\Local\Temp\ihhluke.exe

Filesize
298KB

MD5
2b880f3c1017b0028343e74b7373806e

SHA1
3917e7a82083c0b4ea9416ca3eafd89ef1cd9e18

SHA256
ac779191df8d2df310e3843cf4c8d8a5266c4873099fff77ea29b1b2e8d63e34

SHA512
038bf93f7736c3b7d60dbad9f3672da62889ee8eba74c6d860f63f257d5c6b9f1e045d94335f43b107268082d38cc246c0f330e2a776631b74a7512aa4cf597b

Download Submit
memory/2424-3-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2424-6-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2424-0-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2424-2-0x0000000000451000-0x0000000000495000-memory.dmp

Filesize
272KB

Download
memory/2424-1-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2708-11-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2708-12-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2708-10-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/2708-17-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/3492-21-0x0000000010000000-0x000000001008A000-memory.dmp

Filesize
552KB

Download
memory/3492-22-0x0000000010000000-0x000000001008A000-memory.dmp

Filesize
552KB

Download
memory/3492-24-0x0000000010000000-0x000000001008A000-memory.dmp

Filesize
552KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads