tinba | e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7

Analysis

max time kernel
106s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 17:07

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General

Target

e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe
Size

89KB
MD5

0b91932f16c8ded96503b52f8e71e6d7
SHA1

024c8465e4c2eee355eaa26436412acdc3c650b4
SHA256

e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7
SHA512

df466382b36085be5f7f441e83592df860b60b37066710f4e21b0a60bc0fdd8c58fc4ec5fc3f33e9c8e7490a00356907512d7be2676aff96ae160da61484f6e9
SSDEEP

1536:t1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7q:v+4MJIkLZJNAQ9Jo9q

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3EF55722 = "C:\\Users\\Admin\\AppData\\Roaming\\3EF55722\\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/412-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1612	2488	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	e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2488	winver.exe
2488	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2488	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 2488	412	e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe	84
PID 412 wrote to memory of 2488	412	e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe	84
PID 412 wrote to memory of 2488	412	e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe	84
PID 412 wrote to memory of 2488	412	e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe	84
PID 2488 wrote to memory of 3440	2488	winver.exe	56
PID 2488 wrote to memory of 2652	2488	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe
  "C:\Users\Admin\AppData\Local\Temp\e4a2af62d511687167ad5f264a0035ebee5a694363112ef530c344591261eea7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:412
- - 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:2488
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 356
      4⤵
      Program crash
      PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2488 -ip 2488
1⤵
PID:4664

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/412-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/412-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/412-4-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/412-7-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/412-8-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/2488-6-0x00007FFC78C70000-0x00007FFC78E65000-memory.dmp

Filesize
2.0MB

Download
memory/2488-10-0x0000000001620000-0x0000000001626000-memory.dmp

Filesize
24KB

Download
memory/2488-13-0x0000000001620000-0x0000000001626000-memory.dmp

Filesize
24KB

Download
memory/2652-12-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3440-3-0x0000000000D80000-0x0000000000D86000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x0000000000D80000-0x0000000000D86000-memory.dmp

Filesize
24KB

Download
memory/3440-5-0x00007FFC78D0D000-0x00007FFC78D0E000-memory.dmp

Filesize
4KB

Download