tinba | 2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578

Analysis

max time kernel
119s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 11:07

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General

Target

2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe
Size

34KB
MD5

d7af72d812fda2c92f31cd08d10a30b0
SHA1

ece082e5df53872b762da58698e45cca9dfd0543
SHA256

2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578
SHA512

bfdf11fc1f4b065ff3dc87db0423711327bf594bf7b42b008f07b1f09015f78732a7df7700999494a74bd13df04187099e3027105f2ec4850dd47899f8a67ee1
SSDEEP

768:qp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:qpYoX58z1uirL98xMWnT0OQ9Ji

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\40253E3B = "C:\\Users\\Admin\\AppData\\Roaming\\40253E3B\\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/2284-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2596	1028	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	2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1028	winver.exe
1028	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1028	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 1028	2284	2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe	83
PID 2284 wrote to memory of 1028	2284	2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe	83
PID 2284 wrote to memory of 1028	2284	2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe	83
PID 2284 wrote to memory of 1028	2284	2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe	83
PID 1028 wrote to memory of 3424	1028	winver.exe	56
PID 1028 wrote to memory of 2652	1028	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe
  "C:\Users\Admin\AppData\Local\Temp\2b96de2fd76b6363227c5c879be99454f821f1e5a57d017085ff812d99bae578N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2284
- - 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:1028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 352
      4⤵
      Program crash
      PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1028 -ip 1028
1⤵
PID:2292

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/1028-5-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1028-15-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1028-6-0x0000000077A02000-0x0000000077A03000-memory.dmp

Filesize
4KB

Download
memory/1028-8-0x00007FFD53370000-0x00007FFD53565000-memory.dmp

Filesize
2.0MB

Download
memory/2284-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2284-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2284-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/2284-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2284-10-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/2652-14-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2652-16-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3424-3-0x0000000001430000-0x0000000001436000-memory.dmp

Filesize
24KB

Download
memory/3424-7-0x00007FFD5340D000-0x00007FFD5340E000-memory.dmp

Filesize
4KB

Download
memory/3424-2-0x0000000001430000-0x0000000001436000-memory.dmp

Filesize
24KB

Download