tinba | 87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453

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
10-12-2024 20:14

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General

Target

87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe
Size

45KB
MD5

c674330e79994f5c7425f974b52e56d1
SHA1

161bb8fec641b0a51c3d2e5284c535a35ae317af
SHA256

87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453
SHA512

d38f311c1affbc69e7868a44a24bb0fba61934c327dceebef40ae9877873581c6017345c1dca770be14f172024689ac3c46bf6fc26f68347dd38c3c9a551d8d3
SSDEEP

768:2hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2F:asWE9N5dFu53dsniQaB/xZ14n7zIF+qJ

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8F838C06 = "C:\\Users\\Admin\\AppData\\Roaming\\8F838C06\\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/948-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2060	1700	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	87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1700	winver.exe
1700	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1700	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 1700	948	87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe	83
PID 948 wrote to memory of 1700	948	87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe	83
PID 948 wrote to memory of 1700	948	87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe	83
PID 948 wrote to memory of 1700	948	87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe	83
PID 1700 wrote to memory of 3504	1700	winver.exe	56
PID 1700 wrote to memory of 2652	1700	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:3504
- C:\Users\Admin\AppData\Local\Temp\87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe
  "C:\Users\Admin\AppData\Local\Temp\87bcd1e7306b77cb3f91c6c8bc6f5c1b0541bd1a6059bde80f25b5828adce453.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:948
- - 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:1700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 356
      4⤵
      Program crash
      PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1700 -ip 1700
1⤵
PID:3212

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/948-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/948-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/948-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/948-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/948-9-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/1700-11-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/1700-14-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/1700-5-0x0000000077D72000-0x0000000077D73000-memory.dmp

Filesize
4KB

Download
memory/1700-7-0x00007FFCF71F0000-0x00007FFCF73E5000-memory.dmp

Filesize
2.0MB

Download
memory/2652-13-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download
memory/3504-6-0x00007FFCF728D000-0x00007FFCF728E000-memory.dmp

Filesize
4KB

Download
memory/3504-3-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download