8ae976c8b28baa222b4fd527cccbad2d1102ed21c68f9082c53835fde94c2397

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 13:38

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General

Target

Payload/Hot Tub.app/Firebase_FirebaseCore.bundle/Info.plist
Size

697B
MD5

ca83e596bc0a57a1adbbafeda4988432
SHA1

c239f264cdb2df4cfeda4c11eaa3e799f6a4373c
SHA256

97b41ab7aaaae9b15bc19c69d513bdb8797b73d860991d2616fe01b7eb6373d3
SHA512

aeb610cf3e8ae1a89a0355404fe1fcc90f2f2a298b50786b6f72d6c4bad1ade8fc28629066c2f3d6eeefa2229e6b5b569fb34aa912d32b06b9b739d055012c61

Score

3^/10

discovery

Malware Config

Signatures

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 1 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	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2324	2072	cmd.exe	31
PID 2072 wrote to memory of 2324	2072	cmd.exe	31
PID 2072 wrote to memory of 2324	2072	cmd.exe	31
PID 2324 wrote to memory of 2876	2324	rundll32.exe	33
PID 2324 wrote to memory of 2876	2324	rundll32.exe	33
PID 2324 wrote to memory of 2876	2324	rundll32.exe	33
PID 2324 wrote to memory of 2876	2324	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Payload\Hot Tub.app\Firebase_FirebaseCore.bundle\Info.plist"
1⤵
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Payload\Hot Tub.app\Firebase_FirebaseCore.bundle\Info.plist
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Payload\Hot Tub.app\Firebase_FirebaseCore.bundle\Info.plist"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
4beef3dfb561fbe8cafd453921e4c9e3

SHA1
26c36ad066edae5d9c562e86d19829f256c0ae60

SHA256
eb4fc42151ece95e85ff545d73f2197f0a29b678a03995b10c91639275fb49c6

SHA512
197b2994dfa5446cb8889a9e6db449afeb2584de595b716294ac3e4f422b2a8052accd37ccb865720f5fbce9c94668fcbb628c0d7020d1dec39e8c007b13a469

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