tinba | 23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 18:37

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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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\78694EC8 = "C:\\Users\\Admin\\AppData\\Roaming\\78694EC8\\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/2876-0-0x0000000000400000-0x000000000041E000-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	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe
2888	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2888	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2888	2876	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	31
PID 2876 wrote to memory of 2888	2876	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	31
PID 2876 wrote to memory of 2888	2876	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	31
PID 2876 wrote to memory of 2888	2876	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	31
PID 2876 wrote to memory of 2888	2876	23a38d74c87efa0d0b9272f691196c9513beab6cb688a674a0ed1b463462a290N.exe	31
PID 2888 wrote to memory of 1100	2888	winver.exe	19
PID 2888 wrote to memory of 1048	2888	winver.exe	17
PID 2888 wrote to memory of 1092	2888	winver.exe	18
PID 2888 wrote to memory of 1100	2888	winver.exe	19
PID 2888 wrote to memory of 1556	2888	winver.exe	25

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1048

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1092

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1100
- 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:2876
- - 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:2888

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1556

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/1048-25-0x0000000077501000-0x0000000077502000-memory.dmp

Filesize
4KB

Download
memory/1048-24-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1092-19-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1092-26-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1100-3-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1100-2-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1100-21-0x0000000002A50000-0x0000000002A56000-memory.dmp

Filesize
24KB

Download
memory/1100-10-0x0000000077501000-0x0000000077502000-memory.dmp

Filesize
4KB

Download
memory/1100-27-0x0000000002A50000-0x0000000002A56000-memory.dmp

Filesize
24KB

Download
memory/1100-4-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1556-28-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/1556-29-0x0000000077501000-0x0000000077502000-memory.dmp

Filesize
4KB

Download
memory/1556-23-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/2876-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2876-13-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/2876-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2876-5-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/2876-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2888-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2888-7-0x00000000776B0000-0x00000000776B1000-memory.dmp

Filesize
4KB

Download
memory/2888-8-0x00000000776AF000-0x00000000776B0000-memory.dmp

Filesize
4KB

Download
memory/2888-9-0x00000000776AF000-0x00000000776B1000-memory.dmp

Filesize
8KB

Download
memory/2888-11-0x00000000774B0000-0x0000000077659000-memory.dmp

Filesize
1.7MB

Download
memory/2888-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download