tinba | 3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 21:03

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General

Target

3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe
Size

110KB
MD5

72168fb4e9f81c17b89a207181e19aaa
SHA1

848e8f5daa50cc1cd460d73f3bf1f956e574a7c4
SHA256

3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8
SHA512

58a8e302faa178d21fe1df02091885a4e56a40dd3d355a2d48ba59183a8fe7e34965b3ad4ebd5d846b75456aeff7eaca8e27f51865aac588b0056921397a5d16
SSDEEP

1536:HiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:HiyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\038B9D58 = "C:\\Users\\Admin\\AppData\\Roaming\\038B9D58\\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/868-0-0x0000000000400000-0x000000000041E000-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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe
3000	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3000	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 3000	868	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe	32
PID 868 wrote to memory of 3000	868	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe	32
PID 868 wrote to memory of 3000	868	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe	32
PID 868 wrote to memory of 3000	868	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe	32
PID 868 wrote to memory of 3000	868	3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe	32
PID 3000 wrote to memory of 1208	3000	winver.exe	21
PID 3000 wrote to memory of 1096	3000	winver.exe	19
PID 3000 wrote to memory of 1172	3000	winver.exe	20
PID 3000 wrote to memory of 1208	3000	winver.exe	21
PID 3000 wrote to memory of 1600	3000	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1096

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1208
- C:\Users\Admin\AppData\Local\Temp\3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe
  "C:\Users\Admin\AppData\Local\Temp\3837f7a016f9beba641df930d12bba6a97e151d2f37c7eee7c82588a82990aa8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:868
- - 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:3000

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1600

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/868-5-0x0000000001BB0000-0x00000000025B0000-memory.dmp

Filesize
10.0MB

Download
memory/868-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/868-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/868-13-0x0000000001BB0000-0x00000000025B0000-memory.dmp

Filesize
10.0MB

Download
memory/868-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1096-22-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/1096-23-0x00000000776E1000-0x00000000776E2000-memory.dmp

Filesize
4KB

Download
memory/1172-30-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1208-4-0x0000000002610000-0x0000000002616000-memory.dmp

Filesize
24KB

Download
memory/1208-10-0x00000000776E1000-0x00000000776E2000-memory.dmp

Filesize
4KB

Download
memory/1208-33-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1208-2-0x0000000002610000-0x0000000002616000-memory.dmp

Filesize
24KB

Download
memory/1208-3-0x0000000002610000-0x0000000002616000-memory.dmp

Filesize
24KB

Download
memory/1600-29-0x0000000001D80000-0x0000000001D86000-memory.dmp

Filesize
24KB

Download
memory/1600-32-0x00000000776E1000-0x00000000776E2000-memory.dmp

Filesize
4KB

Download
memory/1600-31-0x0000000001D80000-0x0000000001D86000-memory.dmp

Filesize
24KB

Download
memory/3000-8-0x000000007788F000-0x0000000077890000-memory.dmp

Filesize
4KB

Download
memory/3000-24-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/3000-9-0x000000007788F000-0x0000000077891000-memory.dmp

Filesize
8KB

Download
memory/3000-11-0x0000000077690000-0x0000000077839000-memory.dmp

Filesize
1.7MB

Download
memory/3000-7-0x0000000077890000-0x0000000077891000-memory.dmp

Filesize
4KB

Download
memory/3000-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/3000-38-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download