tinba | 85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03f

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 00:18

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General

Target

85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe
Size

45KB
MD5

73b7f7d42efec47c39a8b7dc89b14900
SHA1

93af7905a51d6a141e89e2ab5e87698e3fdf66f8
SHA256

85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03f
SHA512

e37c81c4d191033688ef1b34f7aff04fe74f594f98d64060de36ff9ddd08e0cbd9404c2886c00505b801c22471726455019fdc0ff495f52113dba5e36cfe901d
SSDEEP

768:UhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:YsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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

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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\0DAB94E9 = "C:\\Users\\Admin\\AppData\\Roaming\\0DAB94E9\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1628-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe
2772	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2772	winver.exe
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2772	1628	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe	31
PID 1628 wrote to memory of 2772	1628	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe	31
PID 1628 wrote to memory of 2772	1628	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe	31
PID 1628 wrote to memory of 2772	1628	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe	31
PID 1628 wrote to memory of 2772	1628	85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe	31
PID 2772 wrote to memory of 1268	2772	winver.exe	21
PID 2772 wrote to memory of 1124	2772	winver.exe	19
PID 2772 wrote to memory of 1196	2772	winver.exe	20
PID 2772 wrote to memory of 1268	2772	winver.exe	21
PID 2772 wrote to memory of 1220	2772	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1124

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1196

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1268
- C:\Users\Admin\AppData\Local\Temp\85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe
  "C:\Users\Admin\AppData\Local\Temp\85d4a4903c5e4ac891f9f38b329643626a8626151137711b5f5157c6e76dd03fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1628
- - 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:2772

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1220

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/1124-32-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/1124-22-0x0000000077071000-0x0000000077072000-memory.dmp

Filesize
4KB

Download
memory/1124-20-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/1196-28-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1196-21-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1220-30-0x0000000001D20000-0x0000000001D26000-memory.dmp

Filesize
24KB

Download
memory/1220-26-0x0000000001D20000-0x0000000001D26000-memory.dmp

Filesize
24KB

Download
memory/1220-31-0x0000000077071000-0x0000000077072000-memory.dmp

Filesize
4KB

Download
memory/1268-10-0x0000000077071000-0x0000000077072000-memory.dmp

Filesize
4KB

Download
memory/1268-29-0x00000000025E0000-0x00000000025E6000-memory.dmp

Filesize
24KB

Download
memory/1268-2-0x0000000002B40000-0x0000000002B46000-memory.dmp

Filesize
24KB

Download
memory/1268-3-0x0000000002B40000-0x0000000002B46000-memory.dmp

Filesize
24KB

Download
memory/1268-4-0x0000000002B40000-0x0000000002B46000-memory.dmp

Filesize
24KB

Download
memory/1268-24-0x00000000025E0000-0x00000000025E6000-memory.dmp

Filesize
24KB

Download
memory/1628-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1628-13-0x0000000001B40000-0x0000000002540000-memory.dmp

Filesize
10.0MB

Download
memory/1628-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1628-5-0x0000000001B40000-0x0000000002540000-memory.dmp

Filesize
10.0MB

Download
memory/1628-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2772-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2772-7-0x0000000077220000-0x0000000077221000-memory.dmp

Filesize
4KB

Download
memory/2772-27-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2772-8-0x000000007721F000-0x0000000077220000-memory.dmp

Filesize
4KB

Download
memory/2772-9-0x000000007721F000-0x0000000077221000-memory.dmp

Filesize
8KB

Download
memory/2772-11-0x0000000077020000-0x00000000771C9000-memory.dmp

Filesize
1.7MB

Download