tinba | 23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290

General

Target

23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe
Size

110KB
MD5

89e5f0c11f7f0007fa2a09e3cab8dd50
SHA1

5885d95969d011e077c1c55d95f5e55a0776f782
SHA256

23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290
SHA512

6ee3de90823b86fbee7bfda215f0e4c855d1de9e0e1f59b56c688c0a31b305b0264f88442f322ae45e02ef3c2fd0b00d82acfcac10d0b2f73dd99c1843574694
SSDEEP

1536:xiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:xiyvRmDLs/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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5CF6A8C3 = "C:\\Users\\Admin\\AppData\\Roaming\\5CF6A8C3\\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/3924-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
564	4416	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	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4416	winver.exe
4416	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4416	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3568	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 4416	3924	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	85
PID 3924 wrote to memory of 4416	3924	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	85
PID 3924 wrote to memory of 4416	3924	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	85
PID 3924 wrote to memory of 4416	3924	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	85
PID 4416 wrote to memory of 3568	4416	winver.exe	56
PID 4416 wrote to memory of 2468	4416	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2468

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3568
- C:\Users\Admin\AppData\Local\Temp\23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe
  "C:\Users\Admin\AppData\Local\Temp\23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3924
- - 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:4416
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 352
      4⤵
      Program crash
      PID:564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4416 -ip 4416
1⤵
PID:1352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2468-16-0x0000000000D40000-0x0000000000D46000-memory.dmp

Filesize
24KB

Download
memory/3568-9-0x00007FFFFF240000-0x00007FFFFF241000-memory.dmp

Filesize
4KB

Download
memory/3568-3-0x00000000029F0000-0x00000000029F6000-memory.dmp

Filesize
24KB

Download
memory/3568-2-0x00000000029F0000-0x00000000029F6000-memory.dmp

Filesize
24KB

Download
memory/3568-7-0x00007FFFFF0AD000-0x00007FFFFF0AE000-memory.dmp

Filesize
4KB

Download
memory/3924-4-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/3924-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3924-11-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3924-12-0x0000000002190000-0x0000000002B90000-memory.dmp

Filesize
10.0MB

Download
memory/3924-1-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/4416-6-0x0000000077272000-0x0000000077273000-memory.dmp

Filesize
4KB

Download
memory/4416-5-0x00000000010F0000-0x00000000010F6000-memory.dmp

Filesize
24KB

Download
memory/4416-8-0x00007FFFFF010000-0x00007FFFFF205000-memory.dmp

Filesize
2.0MB

Download
memory/4416-17-0x00000000010F0000-0x00000000010F6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads