tinba | 38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3

Analysis

max time kernel
110s
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
20-01-2025 07:43

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General

Target

38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe
Size

110KB
MD5

679c285dbfc3b52cdea9b2c53b01a080
SHA1

87d78453049f092036a44bd5a8f120745f33f88b
SHA256

38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3
SHA512

8e53dc768edd03f3b3378ff85da43cf39060867e2fe6ac3fa5a9f230b1fc80c1552d63b0985a2c3630ac771fc8068b9c1961388dcc0acffd366eed944a0feef8
SSDEEP

1536:OiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:OiyvRmDLs/ZrwWJjAqGcRJ2hQ

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\BBC5B414 = "C:\\Users\\Admin\\AppData\\Roaming\\BBC5B414\\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/2788-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1984	3524	WerFault.exe	84

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	38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3524	winver.exe
3524	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3524	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 3524	2788	38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe	84
PID 2788 wrote to memory of 3524	2788	38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe	84
PID 2788 wrote to memory of 3524	2788	38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe	84
PID 2788 wrote to memory of 3524	2788	38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe	84
PID 3524 wrote to memory of 3476	3524	winver.exe	56
PID 3524 wrote to memory of 2792	3524	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2792

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3476
- C:\Users\Admin\AppData\Local\Temp\38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe
  "C:\Users\Admin\AppData\Local\Temp\38122e28ce6b1f1135a62a6f8a9178336d5428ef55a3b2981b2e09e7e4990be3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:3524
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 352
      4⤵
      Program crash
      PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3524 -ip 3524
1⤵
PID:1728

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/2788-9-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2788-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2788-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2788-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2788-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2792-13-0x00000000008C0000-0x00000000008C6000-memory.dmp

Filesize
24KB

Download
memory/2792-15-0x00000000008C0000-0x00000000008C6000-memory.dmp

Filesize
24KB

Download
memory/3476-6-0x00007FFD8B8ED000-0x00007FFD8B8EE000-memory.dmp

Filesize
4KB

Download
memory/3476-2-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Filesize
24KB

Download
memory/3476-3-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Filesize
24KB

Download
memory/3524-5-0x0000000077B32000-0x0000000077B33000-memory.dmp

Filesize
4KB

Download
memory/3524-11-0x0000000002390000-0x0000000002396000-memory.dmp

Filesize
24KB

Download
memory/3524-7-0x00007FFD8B850000-0x00007FFD8BA45000-memory.dmp

Filesize
2.0MB

Download
memory/3524-14-0x0000000002390000-0x0000000002396000-memory.dmp

Filesize
24KB

Download