tinba | 203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2025, 23:34

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General

Target

203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe
Size

110KB
MD5

26ed580ce355ffd8a6082f9413e74a10
SHA1

c473cd5f724a259318f3beac83a4527e6294349a
SHA256

203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8
SHA512

c22e85001c4cdae3e4b1c1b8902aa33c6c9aabc46f452e660938837c982ff3a3eab26d15e39960ff22b2d06d78a79ba01341cd06ca3b88bc3c245a0f40373a65
SSDEEP

1536:fiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Ew:fiyvRmDLs/ZrwWJjAqGcRJ2hw

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CFEF8781 = "C:\\Users\\Admin\\AppData\\Roaming\\CFEF8781\\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/4140-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1228	2232	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	203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2232	winver.exe
2232	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3352	Explorer.EXE
Token: SeCreatePagefilePrivilege	3352	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2232	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 2232	4140	203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe	83
PID 4140 wrote to memory of 2232	4140	203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe	83
PID 4140 wrote to memory of 2232	4140	203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe	83
PID 4140 wrote to memory of 2232	4140	203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe	83
PID 2232 wrote to memory of 3352	2232	winver.exe	56
PID 2232 wrote to memory of 2804	2232	winver.exe	49

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2804

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3352
- C:\Users\Admin\AppData\Local\Temp\203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe
  "C:\Users\Admin\AppData\Local\Temp\203fa5b045bcc12dfe50844639897dea253bbbc19a0480d10e6f73eac37323d8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4140
- - 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:2232
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 352
      4⤵
      Program crash
      PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2232 -ip 2232
1⤵
PID:2756

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/2232-6-0x0000000077EC2000-0x0000000077EC3000-memory.dmp

Filesize
4KB

Download
memory/2232-15-0x0000000001110000-0x0000000001116000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/2232-5-0x0000000001110000-0x0000000001116000-memory.dmp

Filesize
24KB

Download
memory/2804-14-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3352-3-0x0000000000B00000-0x0000000000B06000-memory.dmp

Filesize
24KB

Download
memory/3352-7-0x00007FF98830D000-0x00007FF98830E000-memory.dmp

Filesize
4KB

Download
memory/3352-2-0x0000000000B00000-0x0000000000B06000-memory.dmp

Filesize
24KB

Download
memory/4140-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/4140-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4140-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4140-10-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/4140-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download