tinba | fa095863c7f1c7e89dfc0f1a1eba3baadc402e7e2c11746cf40d4775eed535e4

Analysis

max time kernel
118s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/08/2024, 03:42

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General

Target
e083da04a8031210417cc896393a32e0N.exe
Size 98KB
Sample240804-d9gp7avfmk
SHA256 fa095863c7f1c7e89dfc0f1a1eba3baadc402e7e2c11746cf40d4775eed535e4
MD5 e083da04a8031210417cc896393a32e0
SHA1 6e98aa30260e5de01b2998ce1ff814c7d7d00d12
SHA512 cac05407216dceb0bc93a9f3bb057bc42768f7dfec083774c9781d2406c729a20153b6d3cd378e3b3d709b4295b8a2d7bb3b6bd501789a450e2626a9f2f0216c
SSDEEP 768:r+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:r+mFM2HXKZgi9Iksu+XM57ipeq9JF
MD5 SHA1 SHA512 SSDEEP

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\6C8EDD49 = "C:\\Users\\Admin\\AppData\\Roaming\\6C8EDD49\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4572	2844	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	e083da04a8031210417cc896393a32e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2844	winver.exe
2844	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2844	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3436	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 2844	4476	e083da04a8031210417cc896393a32e0N.exe	85
PID 4476 wrote to memory of 2844	4476	e083da04a8031210417cc896393a32e0N.exe	85
PID 4476 wrote to memory of 2844	4476	e083da04a8031210417cc896393a32e0N.exe	85
PID 4476 wrote to memory of 2844	4476	e083da04a8031210417cc896393a32e0N.exe	85
PID 2844 wrote to memory of 3436	2844	winver.exe	56
PID 2844 wrote to memory of 2968	2844	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2968

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3436
- C:\Users\Admin\AppData\Local\Temp\e083da04a8031210417cc896393a32e0N.exe
  "C:\Users\Admin\AppData\Local\Temp\e083da04a8031210417cc896393a32e0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4476
- - 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:2844
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 352
      4⤵
      Program crash
      PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2844 -ip 2844
1⤵
PID:2740

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

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Downloads

memory/2844-10-0x0000000001270000-0x0000000001276000-memory.dmp

Download

memory/2844-4-0x0000000077EC2000-0x0000000077EC3000-memory.dmp

Download

memory/2844-6-0x00007FFE75010000-0x00007FFE75205000-memory.dmp

Download

memory/2844-13-0x0000000001270000-0x0000000001276000-memory.dmp

Download

memory/2968-12-0x0000000000B70000-0x0000000000B76000-memory.dmp

Download

memory/3436-2-0x00000000011F0000-0x00000000011F6000-memory.dmp

Download

memory/3436-1-0x00000000011F0000-0x00000000011F6000-memory.dmp

Download

memory/3436-5-0x00007FFE750AD000-0x00007FFE750AE000-memory.dmp

Download

memory/3436-15-0x00007FFE75240000-0x00007FFE75241000-memory.dmp

Download

memory/4476-3-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/4476-7-0x0000000000400000-0x000000000041A000-memory.dmp

Download

memory/4476-8-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/4476-0-0x0000000000680000-0x0000000000681000-memory.dmp

Download