tinba | ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34

General

Target

ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe
Size

89KB
MD5

5d2e887c9450df07ea3b11e29bc30f80
SHA1

edaab6acb2a6e766578e220ba59cc1b799cdc48f
SHA256

ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34
SHA512

8086833eaf34dcddeb0f6b8150c7c0acc8184c1ca39c6c59da5b642084302a9b1cd8ecf1dcb5ba47615120e4552e129419c537addb145a62c05794c1c8e061c2
SSDEEP

1536:v1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:N+4MJIkLZJNAQ9Jo9e

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

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B6AC008E = "C:\\Users\\Admin\\AppData\\Roaming\\B6AC008E\\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/948-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
944	4244	WerFault.exe	87

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	ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4244	winver.exe
4244	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4244	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3440	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 4244	948	ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe	87
PID 948 wrote to memory of 4244	948	ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe	87
PID 948 wrote to memory of 4244	948	ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe	87
PID 948 wrote to memory of 4244	948	ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe	87
PID 4244 wrote to memory of 3440	4244	winver.exe	56
PID 4244 wrote to memory of 2784	4244	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2784

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3440
- C:\Users\Admin\AppData\Local\Temp\ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe
  "C:\Users\Admin\AppData\Local\Temp\ef90c8afec449279d3822573158805b71d37338a7e05f559dc7e38c809497f34N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:948
- - 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:4244
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 352
      4⤵
      Program crash
      PID:944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4244 -ip 4244
1⤵
PID:4400

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/948-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/948-4-0x0000000002220000-0x0000000002C20000-memory.dmp

Filesize
10.0MB

Download
memory/948-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/948-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/948-10-0x0000000002220000-0x0000000002C20000-memory.dmp

Filesize
10.0MB

Download
memory/2784-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2784-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2784-16-0x00007FFD1A18D000-0x00007FFD1A18E000-memory.dmp

Filesize
4KB

Download
memory/3440-11-0x00007FFD1A320000-0x00007FFD1A321000-memory.dmp

Filesize
4KB

Download
memory/3440-6-0x00007FFD1A18D000-0x00007FFD1A18E000-memory.dmp

Filesize
4KB

Download
memory/3440-2-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

Download
memory/3440-3-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

Download
memory/4244-5-0x0000000076FB2000-0x0000000076FB3000-memory.dmp

Filesize
4KB

Download
memory/4244-7-0x00007FFD1A0F0000-0x00007FFD1A2E5000-memory.dmp

Filesize
2.0MB

Download
memory/4244-13-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download
memory/4244-17-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads