tinba | 03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aa

Analysis

max time kernel
116s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 12:49

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General

Target

03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe
Size

45KB
MD5

e78f6b59b0992022cda6057f122f3ff0
SHA1

caccee3d677b41e57cc0c4299c75e7560b960041
SHA256

03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aa
SHA512

d449e58ff8bafcc152a48bdf229b126b561db91f53a8c0c706205c7cfaf200303965155f7beaa22b382bf339faff3876113125c875b09af8dc46b428d9301cd5
SSDEEP

768:5hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:jsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba
Tinba family
tinba

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A8E8802D = "C:\\Users\\Admin\\AppData\\Roaming\\A8E8802D\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/624-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2704	4100	WerFault.exe	83

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	03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4100	winver.exe
4100	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4100	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 4100	624	03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe	83
PID 624 wrote to memory of 4100	624	03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe	83
PID 624 wrote to memory of 4100	624	03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe	83
PID 624 wrote to memory of 4100	624	03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe	83
PID 4100 wrote to memory of 3500	4100	winver.exe	56
PID 4100 wrote to memory of 3064	4100	winver.exe	50

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:3064

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe
  "C:\Users\Admin\AppData\Local\Temp\03e99fb64a8f6480628b5148005dfbc48dfb96d70a5fe4117cada0726209d0aaN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 352
      4⤵
      Program crash
      PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4100 -ip 4100
1⤵
PID:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/624-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/624-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/624-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/624-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/624-9-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/3064-13-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/3500-2-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/3500-6-0x00007FFFF028D000-0x00007FFFF028E000-memory.dmp

Filesize
4KB

Download
memory/3500-3-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/4100-7-0x00007FFFF01F0000-0x00007FFFF03E5000-memory.dmp

Filesize
2.0MB

Download
memory/4100-5-0x0000000077A02000-0x0000000077A03000-memory.dmp

Filesize
4KB

Download
memory/4100-11-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4100-14-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download