tinba | a5dd6bdc9a50c773f1b96e90a717fe3ef24c44e988cd07d40e1561d6bf76c375

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 10:23

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General

Target

c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe
Size

34KB
MD5

b36903144bd32c1090633fcc056ff11d
SHA1

5dda87571d683cfc5b1953011acbf21a3d195471
SHA256

c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f
SHA512

0f91c7a2775e6abefe57dfdab788c9ed72bd9ec06ded6fec9e954fd5c3a0a663e76d6def5cf343caf61952577460c6e2e3c44dae0d64b064581c0b05fb7bc1f6
SSDEEP

768:2p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:2pYoX58z1uirL98xMWnT0OQ9J2

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1232-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\B4893423 = "C:\\Users\\Admin\\AppData\\Roaming\\B4893423\\bin.exe"	winver.exe

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	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe
2952	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2952	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2952	1232	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe	31
PID 1232 wrote to memory of 2952	1232	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe	31
PID 1232 wrote to memory of 2952	1232	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe	31
PID 1232 wrote to memory of 2952	1232	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe	31
PID 1232 wrote to memory of 2952	1232	c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe	31
PID 2952 wrote to memory of 1188	2952	winver.exe	21
PID 2952 wrote to memory of 1108	2952	winver.exe	19
PID 2952 wrote to memory of 1156	2952	winver.exe	20
PID 2952 wrote to memory of 1188	2952	winver.exe	21
PID 2952 wrote to memory of 1552	2952	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:1188
- C:\Users\Admin\AppData\Local\Temp\c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe
  "C:\Users\Admin\AppData\Local\Temp\c4ac111d3acbe526568ac988170d1fb0c0be4869ded07b650c74e1e77588c27f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1232
- - 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:2952

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1552

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/1108-28-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1108-29-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

Filesize
4KB

Download
memory/1156-30-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1156-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1188-10-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

Filesize
4KB

Download
memory/1188-25-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1188-2-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1188-3-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1188-4-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1188-22-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1232-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1232-5-0x0000000001E80000-0x0000000002880000-memory.dmp

Filesize
10.0MB

Download
memory/1232-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1232-13-0x0000000001E80000-0x0000000002880000-memory.dmp

Filesize
10.0MB

Download
memory/1232-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/1552-27-0x0000000076EC1000-0x0000000076EC2000-memory.dmp

Filesize
4KB

Download
memory/1552-26-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1552-24-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/2952-8-0x000000007706F000-0x0000000077070000-memory.dmp

Filesize
4KB

Download
memory/2952-7-0x0000000077070000-0x0000000077071000-memory.dmp

Filesize
4KB

Download
memory/2952-6-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2952-9-0x000000007706F000-0x0000000077071000-memory.dmp

Filesize
8KB

Download
memory/2952-11-0x0000000076E70000-0x0000000077019000-memory.dmp

Filesize
1.7MB

Download
memory/2952-31-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download