tinba | 77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190e

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
04-01-2025 10:49

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General

Target

77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe
Size

110KB
MD5

1a5c7bb9310c8390be2d3f63fa4b3a00
SHA1

8db94f8aab9246c01a793a51013d937f92fceaeb
SHA256

77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190e
SHA512

9f7046b49f07170567afbba7c72e7a85fe6c2c5784ce2a3039bed6cbacbca3826d2e6dec079dda4805605e3252b5cbb8a883f1db7658e760ccdc5c429f9dba9d
SSDEEP

1536:/iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:/iyvRmDLs/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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7F480BF4 = "C:\\Users\\Admin\\AppData\\Roaming\\7F480BF4\\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/3240-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1960	2576	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	77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2576	winver.exe
2576	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2576	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 2576	3240	77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe	83
PID 3240 wrote to memory of 2576	3240	77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe	83
PID 3240 wrote to memory of 2576	3240	77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe	83
PID 3240 wrote to memory of 2576	3240	77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe	83
PID 2576 wrote to memory of 3528	2576	winver.exe	56
PID 2576 wrote to memory of 2736	2576	winver.exe	46

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2736

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3528
- C:\Users\Admin\AppData\Local\Temp\77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe
  "C:\Users\Admin\AppData\Local\Temp\77c6672f9b2a69524c38d803e105a90dad9807479dde6bb6bd478d8cfe0f190eN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3240
- - 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:2576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 356
      4⤵
      Program crash
      PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2576 -ip 2576
1⤵
PID:3596

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/2576-6-0x00000000770E2000-0x00000000770E3000-memory.dmp

Filesize
4KB

Download
memory/2576-16-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Filesize
24KB

Download
memory/2576-8-0x00007FFB286B0000-0x00007FFB288A5000-memory.dmp

Filesize
2.0MB

Download
memory/2576-5-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Filesize
24KB

Download
memory/2736-15-0x0000000000B90000-0x0000000000B96000-memory.dmp

Filesize
24KB

Download
memory/3240-10-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3240-4-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/3240-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3240-11-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/3240-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/3528-7-0x00007FFB2874D000-0x00007FFB2874E000-memory.dmp

Filesize
4KB

Download
memory/3528-2-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/3528-3-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download