tinba | b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8

Analysis

max time kernel
7s
max time network
6s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2022, 18:42

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General

Target
b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe
Size 88KB
Sample221023-xclgnabhen
SHA256 b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8
MD5 ba6cdcd00309cbb7a225af830fdc1bbf
SHA1 e87389d57a689f224875735e61f3eda94d0be9b1
SHA512 c93e2a868f8ef945311873b0780b7db148b0026924ee6b25f50671b93a81061dab3473f753fb142513c920958cad8eda7e8d1a2e9eda3f1a44433b967ccb1086
SSDEEP 1536:lPx+riFFG1gZg3aOWm3wEeQqjh+rmKVsN:rYJKhFE2jwqWsN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker persistence trojan

Malware Config

Signatures

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	winver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\07D80697 = "C:\\Users\\Admin\\AppData\\Roaming\\07D80697\\bin.exe"	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4944	winver.exe
4944	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4944	winver.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 4944	3136	b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe	82
PID 3136 wrote to memory of 4944	3136	b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe	82
PID 3136 wrote to memory of 4944	3136	b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe	82
PID 3136 wrote to memory of 4944	3136	b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe	82
PID 4944 wrote to memory of 2596	4944	winver.exe	45
PID 4944 wrote to memory of 2480	4944	winver.exe	54
PID 4944 wrote to memory of 2500	4944	winver.exe	53
PID 4944 wrote to memory of 2740	4944	winver.exe	47
PID 4944 wrote to memory of 2596	4944	winver.exe	45
PID 4944 wrote to memory of 1080	4944	winver.exe	24
PID 4944 wrote to memory of 3268	4944	winver.exe	21
PID 4944 wrote to memory of 3364	4944	winver.exe	23
PID 4944 wrote to memory of 3432	4944	winver.exe	22

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3268

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3432

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3364

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:1080

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2596
- C:\Users\Admin\AppData\Local\Temp\b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe
  "C:\Users\Admin\AppData\Local\Temp\b2ff89dfeda6fd9c2661621fd2198bb28e5081a0ef7bd2d929d5ab9e031398a8.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4944

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2740

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2500

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2596-136-0x00000000010D0000-0x00000000010D6000-memory.dmp

Download

memory/3136-132-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3136-134-0x0000000002660000-0x0000000003060000-memory.dmp

Download

memory/4944-135-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

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