tinba | a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 00:09

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General

Target

a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
Size

45KB
MD5

d2fc6054377f883757bd4d878512cd88
SHA1

4bd301c33cf0bca1bf4f0a9fdca1e38c03a8c1aa
SHA256

a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3
SHA512

1ba550e138efdfe50e916859463e7856bff5be6da520129b1e7e80ddd94b0727c08f5fe6b0e802ff06379816d2e2b51c95873020d9234d7b683f4bc00ced5f62
SSDEEP

768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:osWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8D2C162C = "C:\\Users\\Admin\\AppData\\Roaming\\8D2C162C\\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/4992-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4756	2948	WerFault.exe	86

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	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2948	winver.exe
2948	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2948	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 2948	4992	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	86
PID 4992 wrote to memory of 2948	4992	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	86
PID 4992 wrote to memory of 2948	4992	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	86
PID 4992 wrote to memory of 2948	4992	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	86
PID 2948 wrote to memory of 3540	2948	winver.exe	56
PID 2948 wrote to memory of 2672	2948	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3540
- C:\Users\Admin\AppData\Local\Temp\a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
  "C:\Users\Admin\AppData\Local\Temp\a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4992
- - 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:2948
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 352
      4⤵
      Program crash
      PID:4756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2948 -ip 2948
1⤵
PID:1120

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/2672-13-0x0000000000010000-0x0000000000016000-memory.dmp

Filesize
24KB

Download
memory/2948-5-0x0000000077192000-0x0000000077193000-memory.dmp

Filesize
4KB

Download
memory/2948-14-0x0000000001330000-0x0000000001336000-memory.dmp

Filesize
24KB

Download
memory/2948-11-0x0000000001330000-0x0000000001336000-memory.dmp

Filesize
24KB

Download
memory/2948-7-0x00007FFA26150000-0x00007FFA26345000-memory.dmp

Filesize
2.0MB

Download
memory/3540-2-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3540-6-0x00007FFA261ED000-0x00007FFA261EE000-memory.dmp

Filesize
4KB

Download
memory/3540-3-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/4992-4-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/4992-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4992-9-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/4992-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4992-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download