tinba | c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1

Analysis

max time kernel
114s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-01-2025 00:39

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General

Target

c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe
Size

110KB
MD5

82719235c3f37609ba3ea38a3a00e250
SHA1

41becfbe073c9ed20074eb13b16246bc28647adf
SHA256

c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1
SHA512

996a774695c9c57ddf3ea65abc6d4446421792156006502b2c135494d8720f5b8fceb7fdd169efab769eef59b74d6f4890badc8eca9e7ff0a97caff7d5a9ef2d
SSDEEP

1536:piLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:piyvRmDLs/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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34A460FA = "C:\\Users\\Admin\\AppData\\Roaming\\34A460FA\\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/4408-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5084	3544	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	c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3544	winver.exe
3544	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3544	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 3544	4408	c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe	84
PID 4408 wrote to memory of 3544	4408	c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe	84
PID 4408 wrote to memory of 3544	4408	c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe	84
PID 4408 wrote to memory of 3544	4408	c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe	84
PID 3544 wrote to memory of 3536	3544	winver.exe	56
PID 3544 wrote to memory of 2656	3544	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2656

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3536
- C:\Users\Admin\AppData\Local\Temp\c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe
  "C:\Users\Admin\AppData\Local\Temp\c5eea1fdb1d0c4c063e080937e66dc7fbb912ed16b963a729b0a6c69750399b1N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4408
- - 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:3544
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 352
      4⤵
      Program crash
      PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3544 -ip 3544
1⤵
PID:2164

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/2656-12-0x0000000000C30000-0x0000000000C36000-memory.dmp

Filesize
24KB

Download
memory/3536-3-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/3536-2-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/3536-5-0x00007FFB7C7ED000-0x00007FFB7C7EE000-memory.dmp

Filesize
4KB

Download
memory/3544-6-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp

Filesize
2.0MB

Download
memory/3544-10-0x0000000002500000-0x0000000002506000-memory.dmp

Filesize
24KB

Download
memory/3544-13-0x0000000002500000-0x0000000002506000-memory.dmp

Filesize
24KB

Download
memory/4408-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4408-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4408-4-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download
memory/4408-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4408-8-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download