tinba | 79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28

Analysis

max time kernel
95s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 22:12

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General

Target

79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe
Size

45KB
MD5

c59936a027f6125a613aace9d2e970ad
SHA1

b862593aadbe8bd860adc0fc483f35f154610d4a
SHA256

79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28
SHA512

53ea960362843fcfd9c766051225a1a6f6f0de72023328b473922878d28bb8a1ab08ed16f6dc4e9359082db0232a121b7ac57a9e81b79526e15389e09b9e9679
SSDEEP

768:hhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2N:bsWE9N5dFu53dsniQaB/xZ14n7zIF+qx

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\3BBE408C = "C:\\Users\\Admin\\AppData\\Roaming\\3BBE408C\\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/4440-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2068	556	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	79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
556	winver.exe
556	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
556	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 556	4440	79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe	84
PID 4440 wrote to memory of 556	4440	79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe	84
PID 4440 wrote to memory of 556	4440	79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe	84
PID 4440 wrote to memory of 556	4440	79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe	84
PID 556 wrote to memory of 3412	556	winver.exe	56
PID 556 wrote to memory of 2420	556	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2420

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412
- C:\Users\Admin\AppData\Local\Temp\79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe
  "C:\Users\Admin\AppData\Local\Temp\79c9beefb7d887238d20c62142cb04e59459773f50a389556fd81849c48c1b28.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4440
- - 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:556
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 352
      4⤵
      Program crash
      PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 556 -ip 556
1⤵
PID:2304

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/556-6-0x0000000077B32000-0x0000000077B33000-memory.dmp

Filesize
4KB

Download
memory/556-15-0x0000000002BB0000-0x0000000002BB6000-memory.dmp

Filesize
24KB

Download
memory/556-5-0x0000000002BB0000-0x0000000002BB6000-memory.dmp

Filesize
24KB

Download
memory/556-8-0x00007FFC8C930000-0x00007FFC8CB25000-memory.dmp

Filesize
2.0MB

Download
memory/2420-14-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3412-2-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Filesize
24KB

Download
memory/3412-7-0x00007FFC8C9CD000-0x00007FFC8C9CE000-memory.dmp

Filesize
4KB

Download
memory/3412-3-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Filesize
24KB

Download
memory/4440-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4440-4-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/4440-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4440-10-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/4440-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download