tinba | 81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11f

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 17:34

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General

Target

81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe
Size

110KB
MD5

e9c8014a032b75fe22c32905bec32b20
SHA1

56da61c9fa10d2503938fdd279957148ac45fac3
SHA256

81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11f
SHA512

5a4f5bafbe18e89b2a040445daf99514ea2abe728b4aba6cc2dabb6c76e6bc5250de93c1c72f187d72d4516123f72dceab47eb6340def6ecda2a65a46ea123e5
SSDEEP

1536:7iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:7iyvRmDLs/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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\B21ACD2B = "C:\\Users\\Admin\\AppData\\Roaming\\B21ACD2B\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe
1708	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1708	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 1708	2084	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe	31
PID 2084 wrote to memory of 1708	2084	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe	31
PID 2084 wrote to memory of 1708	2084	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe	31
PID 2084 wrote to memory of 1708	2084	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe	31
PID 2084 wrote to memory of 1708	2084	81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe	31
PID 1708 wrote to memory of 1184	1708	winver.exe	21
PID 1708 wrote to memory of 1108	1708	winver.exe	19
PID 1708 wrote to memory of 1156	1708	winver.exe	20
PID 1708 wrote to memory of 1184	1708	winver.exe	21
PID 1708 wrote to memory of 636	1708	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1108

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1156

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1184
- C:\Users\Admin\AppData\Local\Temp\81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe
  "C:\Users\Admin\AppData\Local\Temp\81435690d97be25c7e55da610c6dfa2f5aa08d274dd16014865efe16ad78b11fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2084
- - 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:1708

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:636

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/636-33-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/636-39-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/636-23-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/636-29-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/636-30-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/636-31-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1108-26-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1108-24-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1108-35-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1108-27-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1108-34-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1156-28-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1156-32-0x0000000001E20000-0x0000000001E26000-memory.dmp

Filesize
24KB

Download
memory/1156-19-0x0000000001E20000-0x0000000001E26000-memory.dmp

Filesize
24KB

Download
memory/1184-10-0x0000000076EE1000-0x0000000076EE2000-memory.dmp

Filesize
4KB

Download
memory/1184-37-0x0000000002E20000-0x0000000002E26000-memory.dmp

Filesize
24KB

Download
memory/1184-2-0x0000000002E70000-0x0000000002E76000-memory.dmp

Filesize
24KB

Download
memory/1184-4-0x0000000002E70000-0x0000000002E76000-memory.dmp

Filesize
24KB

Download
memory/1184-3-0x0000000002E70000-0x0000000002E76000-memory.dmp

Filesize
24KB

Download
memory/1184-21-0x0000000002E20000-0x0000000002E26000-memory.dmp

Filesize
24KB

Download
memory/1708-25-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1708-9-0x000000007708F000-0x0000000077091000-memory.dmp

Filesize
8KB

Download
memory/1708-40-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1708-6-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1708-7-0x0000000077090000-0x0000000077091000-memory.dmp

Filesize
4KB

Download
memory/1708-11-0x0000000076E90000-0x0000000077039000-memory.dmp

Filesize
1.7MB

Download
memory/1708-8-0x000000007708F000-0x0000000077090000-memory.dmp

Filesize
4KB

Download
memory/2084-13-0x0000000001D00000-0x0000000002700000-memory.dmp

Filesize
10.0MB

Download
memory/2084-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2084-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2084-5-0x0000000001D00000-0x0000000002700000-memory.dmp

Filesize
10.0MB

Download
memory/2084-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download