tinba | 4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 06:40

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General

Target

4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
Size

45KB
MD5

57f4434acd395c7ef77b773f2a47d841
SHA1

7c42c521f370267bd524300fd866f6ad2345ace6
SHA256

4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a
SHA512

85195024afaa2651d922bdefd509c4bfea59980f0ac6459a9c246b873b6224c3a24589f36d40b2bd1109eb93a8a3cf3d09f92cfa00d6d8a5c47676d9f23be50b
SSDEEP

768:ihP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2v:OsWE9N5dFu53dsniQaB/xZ14n7zIF+qb

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\D263DFB0 = "C:\\Users\\Admin\\AppData\\Roaming\\D263DFB0\\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/2500-0-0x0000000000400000-0x000000000041D000-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	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe
2940	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2940	winver.exe
1160	Explorer.EXE
1160	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1160	Explorer.EXE
1160	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2940	2500	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	31
PID 2500 wrote to memory of 2940	2500	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	31
PID 2500 wrote to memory of 2940	2500	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	31
PID 2500 wrote to memory of 2940	2500	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	31
PID 2500 wrote to memory of 2940	2500	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	31
PID 2940 wrote to memory of 1160	2940	winver.exe	21
PID 2940 wrote to memory of 1048	2940	winver.exe	17
PID 2940 wrote to memory of 1080	2940	winver.exe	19
PID 2940 wrote to memory of 1160	2940	winver.exe	21
PID 2940 wrote to memory of 1436	2940	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1048

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1080

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1160
- C:\Users\Admin\AppData\Local\Temp\4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
  "C:\Users\Admin\AppData\Local\Temp\4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2500
- - 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:2940

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1436

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/1048-32-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/1048-27-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/1080-26-0x0000000077121000-0x0000000077122000-memory.dmp

Filesize
4KB

Download
memory/1080-25-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1080-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1160-4-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/1160-10-0x0000000077121000-0x0000000077122000-memory.dmp

Filesize
4KB

Download
memory/1160-28-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1160-2-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/1160-3-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/1160-22-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1436-24-0x0000000001DE0000-0x0000000001DE6000-memory.dmp

Filesize
24KB

Download
memory/1436-31-0x0000000077121000-0x0000000077122000-memory.dmp

Filesize
4KB

Download
memory/1436-30-0x0000000001DE0000-0x0000000001DE6000-memory.dmp

Filesize
24KB

Download
memory/2500-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2500-13-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2500-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2500-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2500-5-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2940-8-0x00000000772CF000-0x00000000772D0000-memory.dmp

Filesize
4KB

Download
memory/2940-29-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2940-9-0x00000000772CF000-0x00000000772D1000-memory.dmp

Filesize
8KB

Download
memory/2940-11-0x00000000770D0000-0x0000000077279000-memory.dmp

Filesize
1.7MB

Download
memory/2940-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2940-7-0x00000000772D0000-0x00000000772D1000-memory.dmp

Filesize
4KB

Download