tinba | c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917

General

Target

c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe
Size

89KB
MD5

9924d3e3dac2bf0b46d5a19a72d30788
SHA1

a9fdd85c4a571b94855277a92222e6c8f9522a3f
SHA256

c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917
SHA512

1fe18802ba506092ce68f5160e53f24d06a08f57c1c4f974fdbee5df5a8086a19a67f63eeaf58513997cf6bf59a5bb37f3a3a86e4dd1389c7ff510655516d0d8
SSDEEP

1536:Dr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7K:X+4MJIkLZJNAQ9Jo9K

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

Processes:

winver.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CDFB51E6 = "C:\\Users\\Admin\\AppData\\Roaming\\CDFB51E6\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1356-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3924 3596 WerFault.exe winver.exe

pid	pid_target	process	target process
3924	3596	WerFault.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

Processes:

c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exewinver.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

winver.exe

pid process

3596 winver.exe
3596 winver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Explorer.EXE

description pid process

Token: SeShutdownPrivilege 3420 Explorer.EXE
Token: SeCreatePagefilePrivilege 3420 Explorer.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

winver.exe

pid process

3596 winver.exe

pid	process
3596	winver.exe
3596	winver.exe

description	pid	process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

pid	process
3596	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exewinver.exe

description	pid	process	target process
PID 1356 wrote to memory of 3596	1356	c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe	winver.exe
PID 1356 wrote to memory of 3596	1356	c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe	winver.exe
PID 1356 wrote to memory of 3596	1356	c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe	winver.exe
PID 1356 wrote to memory of 3596	1356	c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe	winver.exe
PID 3596 wrote to memory of 3420	3596	winver.exe	Explorer.EXE
PID 3596 wrote to memory of 2848	3596	winver.exe	sihost.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2848

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe
  "C:\Users\Admin\AppData\Local\Temp\c21aa6f826e228139c32818c4179daa2b1830ff0637d3296bf0c54d388523917.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1356
- - 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:3596
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 352
      4⤵
      Program crash
      PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3596 -ip 3596
1⤵
PID:3708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1356-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1356-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/1356-2-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/1356-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1356-11-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/2848-15-0x0000000000F80000-0x0000000000F86000-memory.dmp

Filesize
24KB

Download
memory/3420-3-0x0000000001220000-0x0000000001226000-memory.dmp

Filesize
24KB

Download
memory/3420-7-0x0000000001220000-0x0000000001226000-memory.dmp

Filesize
24KB

Download
memory/3420-8-0x00007FF9A78CD000-0x00007FF9A78CE000-memory.dmp

Filesize
4KB

Download
memory/3596-5-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/3596-9-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/3596-6-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/3596-16-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads