tinba | 81dc0d4731ef09ddf32720d5448b1539e82ca9d7db8d73953a7904bf62b80e1d

General

Target

ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
Size

34KB
MD5

959948adae63fd46c460fa276e6a80a7
SHA1

76f2ee006fe888043c754bf7f54e352fd06e400a
SHA256

ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab
SHA512

587c9f05075c35713458ff4bbf3b752ae653c16bd37b9d196d46f56b65c23b37402ba9f711e5d6bf0dd86e125bb2d1cf11e20423e089e1b6e7ce62e331bb2ed4
SSDEEP

768:3p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:3pYoX58z1uirL98xMWnT0OQ9J2

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3724-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0969BD12 = "C:\\Users\\Admin\\AppData\\Roaming\\0969BD12\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
552	4404	WerFault.exe	85

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	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4404	winver.exe
4404	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4404	winver.exe
3476	Explorer.EXE
3476	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3476	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 4404	3724	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	85
PID 3724 wrote to memory of 4404	3724	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	85
PID 3724 wrote to memory of 4404	3724	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	85
PID 3724 wrote to memory of 4404	3724	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	85
PID 4404 wrote to memory of 3476	4404	winver.exe	56
PID 4404 wrote to memory of 2564	4404	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2564

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3476
- C:\Users\Admin\AppData\Local\Temp\ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
  "C:\Users\Admin\AppData\Local\Temp\ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3724
- - 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:4404
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 356
      4⤵
      Program crash
      PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4404 -ip 4404
1⤵
PID:2836

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/2564-16-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3476-8-0x00007FFFA97A0000-0x00007FFFA97A1000-memory.dmp

Filesize
4KB

Download
memory/3476-2-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/3476-3-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/3476-12-0x00007FFFA9780000-0x00007FFFA9781000-memory.dmp

Filesize
4KB

Download
memory/3476-6-0x00007FFFA960D000-0x00007FFFA960E000-memory.dmp

Filesize
4KB

Download
memory/3724-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3724-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3724-11-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3724-4-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/3724-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/4404-7-0x00007FFFA9570000-0x00007FFFA9765000-memory.dmp

Filesize
2.0MB

Download
memory/4404-5-0x00000000775C2000-0x00000000775C3000-memory.dmp

Filesize
4KB

Download
memory/4404-14-0x0000000002C40000-0x0000000002C46000-memory.dmp

Filesize
24KB

Download
memory/4404-17-0x0000000002C40000-0x0000000002C46000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads