tinba | 7ec2897bacf6792a7327ae3b1e291b1fb5caa5c8acf08de9efc03a22a61b4c6d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 21:39

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General

Target

2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe
Size

104KB
MD5

cf6bc6cb00d4876ab0595e3d1c0abe7a
SHA1

62531cd3e741007de0bf25aa6788b230dbebb2d2
SHA256

2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6
SHA512

ca84769f72add111567ac52904a850ba4850597b4eb16988431a24ff602c5cc079c4a847dbd787d3c0f9bfb1a08146aa425b498fbfa8a1ad56dc808d4a6ecf5c
SSDEEP

1536:ID/AwPx+riFFG1l/m3wEeQqjh+rmKVsWiVPsrhSBXUc/z:IDBYnFE2jwqWsWMfXnz

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
behavioral1/memory/600-0-0x0000000000400000-0x000000000041ABB7-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-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\79CDEF00 = "C:\\Users\\Admin\\AppData\\Roaming\\79CDEF00\\bin.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe
2084	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2084	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 600 wrote to memory of 2084	600	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe	31
PID 600 wrote to memory of 2084	600	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe	31
PID 600 wrote to memory of 2084	600	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe	31
PID 600 wrote to memory of 2084	600	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe	31
PID 600 wrote to memory of 2084	600	2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe	31
PID 2084 wrote to memory of 1200	2084	winver.exe	21
PID 2084 wrote to memory of 1116	2084	winver.exe	19
PID 2084 wrote to memory of 1172	2084	winver.exe	20
PID 2084 wrote to memory of 1200	2084	winver.exe	21
PID 2084 wrote to memory of 288	2084	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe
  "C:\Users\Admin\AppData\Local\Temp\2e84832fd9d1c23ffd39778bb91fb6f07751aa11367d47a3e278c6a813376cb6.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:600
- - 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:2084

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:288

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/288-29-0x00000000773B1000-0x00000000773B2000-memory.dmp

Filesize
4KB

Download
memory/288-28-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download
memory/288-26-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download
memory/600-12-0x0000000000400000-0x000000000041ABB7-memory.dmp

Filesize
106KB

Download
memory/600-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/600-0-0x0000000000400000-0x000000000041ABB7-memory.dmp

Filesize
106KB

Download
memory/600-5-0x0000000001E40000-0x0000000002840000-memory.dmp

Filesize
10.0MB

Download
memory/600-13-0x0000000001E40000-0x0000000002840000-memory.dmp

Filesize
10.0MB

Download
memory/1116-19-0x00000000773B1000-0x00000000773B2000-memory.dmp

Filesize
4KB

Download
memory/1116-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1116-35-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1172-30-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1172-22-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1200-2-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1200-24-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1200-4-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1200-31-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1200-10-0x00000000773B1000-0x00000000773B2000-memory.dmp

Filesize
4KB

Download
memory/2084-7-0x0000000077560000-0x0000000077561000-memory.dmp

Filesize
4KB

Download
memory/2084-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2084-8-0x000000007755F000-0x0000000077560000-memory.dmp

Filesize
4KB

Download
memory/2084-27-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2084-9-0x000000007755F000-0x0000000077561000-memory.dmp

Filesize
8KB

Download
memory/2084-11-0x0000000077360000-0x0000000077509000-memory.dmp

Filesize
1.7MB

Download
memory/2084-36-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download