tinba | f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aee

Analysis

max time kernel
107s
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
03-12-2024 02:21

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General

Target

f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe
Size

110KB
MD5

ddd383b242d5f8324c97dd4b63e287f0
SHA1

2bd82c1bd07031147ef0ffb4d77200ff801d4a39
SHA256

f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aee
SHA512

ba4ee5ffebe352147d44a0d72ec1d21246ed72b443ad41efd28158e00bed7b1aeb76873086276d27d234e8740e10db3a62ae384a7e257eea7ce46977a7ba26dd
SSDEEP

1536:UiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:UiyvRmDLs/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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\97463BF5 = "C:\\Users\\Admin\\AppData\\Roaming\\97463BF5\\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/3820-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1976	2156	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2156	winver.exe
2156	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2156	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 2156	3820	f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe	83
PID 3820 wrote to memory of 2156	3820	f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe	83
PID 3820 wrote to memory of 2156	3820	f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe	83
PID 3820 wrote to memory of 2156	3820	f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe	83
PID 2156 wrote to memory of 3440	2156	winver.exe	56
PID 2156 wrote to memory of 2648	2156	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe
  "C:\Users\Admin\AppData\Local\Temp\f1b786d875b7f3b43a7ca2c294c68be60d1194cfd0c4ae2ec39e2ba64afd9aeeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3820
- - 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:2156
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 352
      4⤵
      Program crash
      PID:1976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2156 -ip 2156
1⤵
PID:3604

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/2156-5-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/2156-14-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2156-11-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2156-7-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-13-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FF81688D000-0x00007FF81688E000-memory.dmp

Filesize
4KB

Download
memory/3440-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3440-3-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3820-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3820-4-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/3820-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3820-9-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/3820-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download