tinba | b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75

Analysis

max time kernel
111s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2025 10:09

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General

Target

b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe
Size

110KB
MD5

bf42fef5875564a3de266427ad66e41a
SHA1

65679f4e5633d916e7d95d85512ce21c4eedbe7b
SHA256

b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75
SHA512

2e29e4975a1c8fd70f64e27edd35b9b4d83ca1d6d7295b5b6664b8bd63bcf30829d18a1236d04db177ef7830d8ee1c560bf27b3a8e9f23a56833b2bb319976ee
SSDEEP

1536:GiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:GiyvRmDLs/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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8E1CA98C = "C:\\Users\\Admin\\AppData\\Roaming\\8E1CA98C\\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/2636-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1512	3924	WerFault.exe	84

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	b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3924	winver.exe
3924	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3924	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 3924	2636	b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe	84
PID 2636 wrote to memory of 3924	2636	b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe	84
PID 2636 wrote to memory of 3924	2636	b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe	84
PID 2636 wrote to memory of 3924	2636	b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe	84
PID 3924 wrote to memory of 3452	3924	winver.exe	56
PID 3924 wrote to memory of 2868	3924	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2868

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3452
- C:\Users\Admin\AppData\Local\Temp\b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe
  "C:\Users\Admin\AppData\Local\Temp\b1eeedf805b209ac03e921a35cf23dce1773da7a4d1bf92c57521e3a45696f75.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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:3924
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 352
      4⤵
      Program crash
      PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3924 -ip 3924
1⤵
PID:1840

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/2636-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2636-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/2636-2-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2636-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2636-10-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/2868-14-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/3452-4-0x0000000001030000-0x0000000001036000-memory.dmp

Filesize
24KB

Download
memory/3452-7-0x00007FF842A6D000-0x00007FF842A6E000-memory.dmp

Filesize
4KB

Download
memory/3452-3-0x0000000001030000-0x0000000001036000-memory.dmp

Filesize
24KB

Download
memory/3924-6-0x00000000778A2000-0x00000000778A3000-memory.dmp

Filesize
4KB

Download
memory/3924-8-0x00007FF8429D0000-0x00007FF842BC5000-memory.dmp

Filesize
2.0MB

Download
memory/3924-5-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download
memory/3924-15-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download