tinba | 21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035f

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 18:17

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General

Target

21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe
Size

110KB
MD5

a6a03f06584e1eeacbfdbade24b970d0
SHA1

cb4a94864751402471fd57621686e18b012c7ec0
SHA256

21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035f
SHA512

5ff83f7e7ba3ca3e84d58b156dd787a3351130fe147d5c224ea779277f56003e89e750d546524962ac8ce9555d3813f2c9c69c8dc2559aef656a43561de9a200
SSDEEP

1536:QiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:QiyvRmDLs/ZrwWJjAqGcRJ2hg

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\C57540ED = "C:\\Users\\Admin\\AppData\\Roaming\\C57540ED\\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/2112-0-0x0000000000400000-0x000000000041E000-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	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2776	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2776	2112	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	31
PID 2112 wrote to memory of 2776	2112	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	31
PID 2112 wrote to memory of 2776	2112	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	31
PID 2112 wrote to memory of 2776	2112	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	31
PID 2112 wrote to memory of 2776	2112	21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe	31
PID 2776 wrote to memory of 1260	2776	winver.exe	21
PID 2776 wrote to memory of 1128	2776	winver.exe	19
PID 2776 wrote to memory of 1184	2776	winver.exe	20
PID 2776 wrote to memory of 1260	2776	winver.exe	21
PID 2776 wrote to memory of 1544	2776	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1128

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1184

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1260
- C:\Users\Admin\AppData\Local\Temp\21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe
  "C:\Users\Admin\AppData\Local\Temp\21490e271138a696b55c98d75f31f28ce62b399d0360589a94aa8f2fc8c4035fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - 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:2776

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1544

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/1128-21-0x0000000077681000-0x0000000077682000-memory.dmp

Filesize
4KB

Download
memory/1128-19-0x0000000077681000-0x0000000077682000-memory.dmp

Filesize
4KB

Download
memory/1128-20-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1184-33-0x0000000001E20000-0x0000000001E26000-memory.dmp

Filesize
24KB

Download
memory/1184-24-0x0000000001E20000-0x0000000001E26000-memory.dmp

Filesize
24KB

Download
memory/1260-29-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1260-3-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1260-4-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1260-2-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1260-10-0x0000000077681000-0x0000000077682000-memory.dmp

Filesize
4KB

Download
memory/1260-26-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1544-28-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1544-31-0x0000000077681000-0x0000000077682000-memory.dmp

Filesize
4KB

Download
memory/1544-30-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2112-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2112-13-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2112-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2112-5-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2112-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2776-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2776-32-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2776-7-0x0000000077830000-0x0000000077831000-memory.dmp

Filesize
4KB

Download
memory/2776-8-0x000000007782F000-0x0000000077830000-memory.dmp

Filesize
4KB

Download
memory/2776-11-0x0000000077630000-0x00000000777D9000-memory.dmp

Filesize
1.7MB

Download
memory/2776-9-0x000000007782F000-0x0000000077831000-memory.dmp

Filesize
8KB

Download
memory/2776-38-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download