tinba | 77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661

Analysis

max time kernel
111s
max time network
94s
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 10:26

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General

Target

77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe
Size

89KB
MD5

9140107d02be5f292ebcdfa45abd1970
SHA1

f0db91a657444a9d4438af6cd098480b16811fe7
SHA256

77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661
SHA512

2b34f7897337aa210bb62e1f2a633733e634a2fa96ac1817d9d352e5dc87afea4bcac26f69f8501f2aeb0856f18762a37e5044147e93007a0cde614139477278
SSDEEP

1536:J1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7a:D+4MJIkLZJNAQ9Jo9a

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6D6E8C5D = "C:\\Users\\Admin\\AppData\\Roaming\\6D6E8C5D\\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/2424-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3940	3756	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3756	winver.exe
3756	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3588	Explorer.EXE
Token: SeCreatePagefilePrivilege	3588	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3756	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 3756	2424	77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe	83
PID 2424 wrote to memory of 3756	2424	77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe	83
PID 2424 wrote to memory of 3756	2424	77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe	83
PID 2424 wrote to memory of 3756	2424	77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe	83
PID 3756 wrote to memory of 3588	3756	winver.exe	56
PID 3756 wrote to memory of 2488	3756	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3588
- C:\Users\Admin\AppData\Local\Temp\77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe
  "C:\Users\Admin\AppData\Local\Temp\77bdc7240ad91a463dc31306db16bd791ef28106ef147b62cf61c4d40e821661N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2424
- - 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:3756
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 352
      4⤵
      Program crash
      PID:3940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3756 -ip 3756
1⤵
PID:3684

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/2424-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2424-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2424-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2424-4-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/2424-9-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/2488-13-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3588-3-0x0000000000B30000-0x0000000000B36000-memory.dmp

Filesize
24KB

Download
memory/3588-6-0x00007FF87556D000-0x00007FF87556E000-memory.dmp

Filesize
4KB

Download
memory/3588-2-0x0000000000B30000-0x0000000000B36000-memory.dmp

Filesize
24KB

Download
memory/3756-7-0x00007FF8754D0000-0x00007FF8756C5000-memory.dmp

Filesize
2.0MB

Download
memory/3756-5-0x00000000777C2000-0x00000000777C3000-memory.dmp

Filesize
4KB

Download
memory/3756-11-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3756-14-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download