tinba | d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36

Analysis

max time kernel
111s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 00:33

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General

Target

d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe
Size

89KB
MD5

e4cc8c3c50e394483f438cae5c725d8b
SHA1

c4de6533257a6a6b5c843b443b23336a3e80e17e
SHA256

d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36
SHA512

f49aacde3ccdbf6523311eb6a9740a224cbd92a6e3dddc71787c1df5b2f81694632420e7b6e0abe0213998ac4490e4af20684385c22f0bbdf23a0a8aaee81f37
SSDEEP

1536:/1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7O:9+4MJIkLZJNAQ9Jo9O

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FAE1FDC2 = "C:\\Users\\Admin\\AppData\\Roaming\\FAE1FDC2\\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/4272-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4520	2480	WerFault.exe	84

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	d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2480	winver.exe
2480	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2480	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 2480	4272	d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe	84
PID 4272 wrote to memory of 2480	4272	d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe	84
PID 4272 wrote to memory of 2480	4272	d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe	84
PID 4272 wrote to memory of 2480	4272	d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe	84
PID 2480 wrote to memory of 3412	2480	winver.exe	56
PID 2480 wrote to memory of 2964	2480	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2964

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412
- C:\Users\Admin\AppData\Local\Temp\d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe
  "C:\Users\Admin\AppData\Local\Temp\d23934c250f761285e65f53b159a6cb670da43d1bca904799e5741f58b312e36.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4272
- - 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:2480
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 352
      4⤵
      Program crash
      PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2480 -ip 2480
1⤵
PID:1888

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

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Downloads

memory/2480-6-0x00007FFAF8110000-0x00007FFAF8305000-memory.dmp

Filesize
2.0MB

Download
memory/2480-11-0x00000000022E0000-0x00000000022E6000-memory.dmp

Filesize
24KB

Download
memory/2480-14-0x00000000022E0000-0x00000000022E6000-memory.dmp

Filesize
24KB

Download
memory/2964-13-0x0000000000920000-0x0000000000926000-memory.dmp

Filesize
24KB

Download
memory/3412-2-0x0000000002410000-0x0000000002416000-memory.dmp

Filesize
24KB

Download
memory/3412-3-0x0000000002410000-0x0000000002416000-memory.dmp

Filesize
24KB

Download
memory/3412-5-0x00007FFAF81AD000-0x00007FFAF81AE000-memory.dmp

Filesize
4KB

Download
memory/4272-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4272-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/4272-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/4272-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4272-9-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download