tinba | 2bb8c08f221668c006ada1625129c7c044a67de4006910254da84ca0de9f1c7c

Analysis

max time kernel
118s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 23:41

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General

Target

b83608d57505af4b96a42b4d3d590e00N.exe
Size

106KB
MD5

b83608d57505af4b96a42b4d3d590e00
SHA1

42688f6da6033c2a96ef05943158dfd54807ba64
SHA256

2bb8c08f221668c006ada1625129c7c044a67de4006910254da84ca0de9f1c7c
SHA512

78f585a417bb7d333487a8516119b0c55097175d4e191e580e2e21d5fce1c3fbb3cbe1e9f615de8cbe93280073f7df25e36f64b1445106ad8b4f155323b7e7b0
SSDEEP

768:++6p+OMlgGXCWhfDzU7f0JDgi9I57+sByZ+XsfXpwtG9ipelU9JA:++mFM2QXtZgi9Iksu+XM57ipeq9JA

Score

10^/10

tinba banker discovery persistence trojan

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker 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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\551323CA = "C:\\Users\\Admin\\AppData\\Roaming\\551323CA\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2416	4948	WerFault.exe	85

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	b83608d57505af4b96a42b4d3d590e00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4948	winver.exe
4948	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4948	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 4948	1168	b83608d57505af4b96a42b4d3d590e00N.exe	85
PID 1168 wrote to memory of 4948	1168	b83608d57505af4b96a42b4d3d590e00N.exe	85
PID 1168 wrote to memory of 4948	1168	b83608d57505af4b96a42b4d3d590e00N.exe	85
PID 1168 wrote to memory of 4948	1168	b83608d57505af4b96a42b4d3d590e00N.exe	85
PID 4948 wrote to memory of 3456	4948	winver.exe	56
PID 4948 wrote to memory of 2632	4948	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2632

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3456
- C:\Users\Admin\AppData\Local\Temp\b83608d57505af4b96a42b4d3d590e00N.exe
  "C:\Users\Admin\AppData\Local\Temp\b83608d57505af4b96a42b4d3d590e00N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1168
- - 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:4948
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 352
      4⤵
      Program crash
      PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4948 -ip 4948
1⤵
PID:3768

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/1168-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1168-4-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/1168-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1168-11-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1168-12-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/2632-16-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/2632-19-0x00007FF8F7BD0000-0x00007FF8F7BD1000-memory.dmp

Filesize
4KB

Download
memory/3456-2-0x0000000002420000-0x0000000002426000-memory.dmp

Filesize
24KB

Download
memory/3456-3-0x0000000002420000-0x0000000002426000-memory.dmp

Filesize
24KB

Download
memory/3456-7-0x00007FF8F7A4C000-0x00007FF8F7A4D000-memory.dmp

Filesize
4KB

Download
memory/3456-6-0x00007FF8F7A4D000-0x00007FF8F7A4E000-memory.dmp

Filesize
4KB

Download
memory/3456-9-0x00007FF8F7BE0000-0x00007FF8F7BE1000-memory.dmp

Filesize
4KB

Download
memory/4948-8-0x00007FF8F79B0000-0x00007FF8F7BA5000-memory.dmp

Filesize
2.0MB

Download
memory/4948-14-0x00000000013A0000-0x00000000013A6000-memory.dmp

Filesize
24KB

Download
memory/4948-17-0x00000000013A0000-0x00000000013A6000-memory.dmp

Filesize
24KB

Download
memory/4948-5-0x0000000077A22000-0x0000000077A23000-memory.dmp

Filesize
4KB

Download