tinba | 4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 00:12

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General

Target

4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe
Size

110KB
MD5

96d8f5462c5c83d9443766b80f32a400
SHA1

bb0a195a6aadbc1fbdf6104e2c673c6a7b894289
SHA256

4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818
SHA512

81ad516ff031b5f95b95144f0ef99c89885c34b3bcd572896d35ae1ea9c3debaf621eec1e504d0a38b02b06f94f36f613a014e31a90ab75fd3c47c6ef88bc0df
SSDEEP

1536:JiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:JiyvRmDLs/ZrwWJjAqGcRJ2hA

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\849F526C = "C:\\Users\\Admin\\AppData\\Roaming\\849F526C\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1612-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4080	2116	WerFault.exe	83

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	4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2116	winver.exe
2116	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3320	Explorer.EXE
Token: SeCreatePagefilePrivilege	3320	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2116	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 2116	1612	4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe	83
PID 1612 wrote to memory of 2116	1612	4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe	83
PID 1612 wrote to memory of 2116	1612	4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe	83
PID 1612 wrote to memory of 2116	1612	4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe	83
PID 2116 wrote to memory of 3320	2116	winver.exe	55
PID 2116 wrote to memory of 2488	2116	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3320
- C:\Users\Admin\AppData\Local\Temp\4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe
  "C:\Users\Admin\AppData\Local\Temp\4ed83478f1cd128443282f0735c777a0c2dae6513e1d9695891f83040f346818.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1612
- - 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:2116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 352
      4⤵
      Program crash
      PID:4080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2116 -ip 2116
1⤵
PID:264

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/1612-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1612-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/1612-9-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/1612-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1612-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2116-5-0x0000000077102000-0x0000000077103000-memory.dmp

Filesize
4KB

Download
memory/2116-7-0x00007FF8863F0000-0x00007FF8865E5000-memory.dmp

Filesize
2.0MB

Download
memory/2116-11-0x00000000014A0000-0x00000000014A6000-memory.dmp

Filesize
24KB

Download
memory/2116-14-0x00000000014A0000-0x00000000014A6000-memory.dmp

Filesize
24KB

Download
memory/2488-13-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3320-6-0x00007FF88648D000-0x00007FF88648E000-memory.dmp

Filesize
4KB

Download
memory/3320-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3320-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download