tinba | 91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09/01/2025, 04:17

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General

Target

91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe
Size

110KB
MD5

6345f60f4f16e4deb5b6a1af71e03ee5
SHA1

b2110606a8271537595ecb9468155c01a8e458bc
SHA256

91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2
SHA512

22735e1ae884ca0591aab71c81da34986e35cf05a586101c01c9d01c6b31a32a0d1fbe4e05c1cc44731ec68668b9417166e9b93a392da08fbc10bbb72a8f3fcd
SSDEEP

1536:biLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:biyvRmDLs/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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\FC778C9C = "C:\\Users\\Admin\\AppData\\Roaming\\FC778C9C\\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/2828-0-0x0000000000400000-0x000000000041E000-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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe
2984	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2984	winver.exe
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2984	2828	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe	31
PID 2828 wrote to memory of 2984	2828	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe	31
PID 2828 wrote to memory of 2984	2828	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe	31
PID 2828 wrote to memory of 2984	2828	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe	31
PID 2828 wrote to memory of 2984	2828	91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe	31
PID 2984 wrote to memory of 1192	2984	winver.exe	21
PID 2984 wrote to memory of 1096	2984	winver.exe	19
PID 2984 wrote to memory of 1160	2984	winver.exe	20
PID 2984 wrote to memory of 1192	2984	winver.exe	21
PID 2984 wrote to memory of 1668	2984	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1096

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1192
- C:\Users\Admin\AppData\Local\Temp\91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe
  "C:\Users\Admin\AppData\Local\Temp\91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2828
- - 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:2984

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1668

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/1096-33-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1096-23-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1096-32-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1096-36-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/1096-21-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1160-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1160-31-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1160-30-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000002620000-0x0000000002626000-memory.dmp

Filesize
24KB

Download
memory/1192-10-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1192-3-0x0000000002620000-0x0000000002626000-memory.dmp

Filesize
24KB

Download
memory/1192-4-0x0000000002620000-0x0000000002626000-memory.dmp

Filesize
24KB

Download
memory/1192-38-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1668-35-0x00000000770D1000-0x00000000770D2000-memory.dmp

Filesize
4KB

Download
memory/1668-29-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1668-34-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2828-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2828-13-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2828-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2828-5-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2828-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2984-6-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2984-22-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2984-7-0x0000000077280000-0x0000000077281000-memory.dmp

Filesize
4KB

Download
memory/2984-8-0x000000007727F000-0x0000000077280000-memory.dmp

Filesize
4KB

Download
memory/2984-9-0x000000007727F000-0x0000000077281000-memory.dmp

Filesize
8KB

Download
memory/2984-11-0x0000000077080000-0x0000000077229000-memory.dmp

Filesize
1.7MB

Download