tinba | 47ea2f6c893753b726f6192d5a14c681fe0c2da7c741341965cf449be81c18ab

Analysis

max time kernel
150s
max time network
144s
platform
windows10_x64
resource
win10v20201028
submitted
17-11-2020 12:14

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General

Target

4b1cc55485401ff64c0b4fd074f941eb.exe
Size

152KB
MD5

0c006c2d559220f0f18cbd99f6924674
SHA1

91fac222a17f3fff564f2c89aac41dd74793eb54
SHA256

47ea2f6c893753b726f6192d5a14c681fe0c2da7c741341965cf449be81c18ab
SHA512

f925f7189f70fc73736d7b5fa65ae5f86aa93dfb74f240d79ecb6b144f053a75932c071b3b9c7d2053c516d0f873875ee9c55c3473e6c092fb3e6b44f0592951

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\4935D74E = "C:\\Users\\Admin\\AppData\\Roaming\\4935D74E\\bin.exe"	winver.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe
3196	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3196	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3048	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 3196	656	4b1cc55485401ff64c0b4fd074f941eb.exe	75
PID 656 wrote to memory of 3196	656	4b1cc55485401ff64c0b4fd074f941eb.exe	75
PID 656 wrote to memory of 3196	656	4b1cc55485401ff64c0b4fd074f941eb.exe	75
PID 656 wrote to memory of 3196	656	4b1cc55485401ff64c0b4fd074f941eb.exe	75
PID 3196 wrote to memory of 3048	3196	winver.exe	57
PID 3196 wrote to memory of 2348	3196	winver.exe	45
PID 3196 wrote to memory of 2368	3196	winver.exe	46
PID 3196 wrote to memory of 2500	3196	winver.exe	50
PID 3196 wrote to memory of 3048	3196	winver.exe	57
PID 3196 wrote to memory of 3272	3196	winver.exe	58
PID 3196 wrote to memory of 3288	3196	winver.exe	59
PID 3196 wrote to memory of 3500	3196	winver.exe	60
PID 3196 wrote to memory of 3788	3196	winver.exe	61
PID 3196 wrote to memory of 656	3196	winver.exe	67
PID 3196 wrote to memory of 4064	3196	winver.exe	74

c:\windows\system32\sihost.exe
sihost.exe
1⤵
PID:2348

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
1⤵
PID:2368

c:\windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
PID:3048
- C:\Users\Admin\AppData\Local\Temp\4b1cc55485401ff64c0b4fd074f941eb.exe
  "C:\Users\Admin\AppData\Local\Temp\4b1cc55485401ff64c0b4fd074f941eb.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:656
- - 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:3196

C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
"C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
1⤵
PID:3272

C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
"C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
1⤵
PID:3288

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3500

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3788

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
1⤵
PID:4064

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

Replay Monitor

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Downloads

memory/656-10-0x0000000000410000-0x0000000000417000-memory.dmp

Filesize
28KB

Download
memory/2348-2-0x0000000000750000-0x0000000000757000-memory.dmp

Filesize
28KB

Download
memory/2368-3-0x0000000000860000-0x0000000000867000-memory.dmp

Filesize
28KB

Download
memory/2500-4-0x00000000000B0000-0x00000000000B7000-memory.dmp

Filesize
28KB

Download
memory/3048-1-0x0000000002570000-0x0000000002577000-memory.dmp

Filesize
28KB

Download
memory/3048-5-0x00000000005B0000-0x00000000005B7000-memory.dmp

Filesize
28KB

Download
memory/3272-6-0x0000000000170000-0x0000000000177000-memory.dmp

Filesize
28KB

Download
memory/3288-7-0x0000000000A10000-0x0000000000A17000-memory.dmp

Filesize
28KB

Download
memory/3500-8-0x0000000000600000-0x0000000000607000-memory.dmp

Filesize
28KB

Download
memory/3788-9-0x0000000000D50000-0x0000000000D57000-memory.dmp

Filesize
28KB

Download