tinba | b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d

Analysis

max time kernel
112s
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
02-01-2025 06:27

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General

Target

b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe
Size

34KB
MD5

fdb8f7f3001e0e4d523fec27c9c7ba34
SHA1

b26714a211e68377fe4adcd30487ed5cfb2b28d9
SHA256

b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d
SHA512

b32d502591903fa2de04afe1b1936b8a1292b86075d60b0ae8e5b1ee2d9af5a957f63f50d6e2ae25c5d3fa0c3af314406c1528f185c104736bfc684af958e005
SSDEEP

768:rp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9JW:rpYoX58z1uirL98xMWnT0OQ9JW

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\148E3620 = "C:\\Users\\Admin\\AppData\\Roaming\\148E3620\\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/4056-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
536	2208	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	b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2208	winver.exe
2208	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 2208	4056	b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe	86
PID 4056 wrote to memory of 2208	4056	b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe	86
PID 4056 wrote to memory of 2208	4056	b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe	86
PID 4056 wrote to memory of 2208	4056	b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe	86
PID 2208 wrote to memory of 3452	2208	winver.exe	56
PID 2208 wrote to memory of 2868	2208	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2868

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3452
- C:\Users\Admin\AppData\Local\Temp\b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe
  "C:\Users\Admin\AppData\Local\Temp\b6bb351fab5b43f1500c1e5f1e959a0d7bde8df0685bb20b6aa28fb8d636657d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4056
- - 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:2208
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 352
      4⤵
      Program crash
      PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2208 -ip 2208
1⤵
PID:1176

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/2208-6-0x00000000778A2000-0x00000000778A3000-memory.dmp

Filesize
4KB

Download
memory/2208-15-0x0000000000B90000-0x0000000000B96000-memory.dmp

Filesize
24KB

Download
memory/2208-8-0x00007FF8429D0000-0x00007FF842BC5000-memory.dmp

Filesize
2.0MB

Download
memory/2208-5-0x0000000000B90000-0x0000000000B96000-memory.dmp

Filesize
24KB

Download
memory/2868-14-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/3452-4-0x0000000001120000-0x0000000001126000-memory.dmp

Filesize
24KB

Download
memory/3452-7-0x00007FF842A6D000-0x00007FF842A6E000-memory.dmp

Filesize
4KB

Download
memory/3452-3-0x0000000001120000-0x0000000001126000-memory.dmp

Filesize
24KB

Download
memory/4056-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4056-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4056-10-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/4056-2-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/4056-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download