tinba | a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4c

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-02-2025 06:31

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General

Target

a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe
Size

44KB
MD5

f0831fa5ef2a1211c6e70b80660381d0
SHA1

f76670698680dcdee046ddabeb8696eeffed51de
SHA256

a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4c
SHA512

566d5057ce0e2220b3f949fe5ae99e0901b5e07ed33bece8b37d683bde04c6661925c63b420a6adbb7c8cb487b1329db9597dd1a316a74d88db1c34a3cd663ec
SSDEEP

768:8a+vOyMD5oQ/cXK+dbFg1TGAN2RUqZxbhxEll7j0MLlH:8a+vM4ld+TR26qZxbhO3IM

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\5583ACAF = "C:\\Users\\Admin\\AppData\\Roaming\\5583ACAF\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2636-0-0x0000000000400000-0x000000000041A000-memory.dmp	upx

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	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe
2764	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2764	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2764	2636	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe	31
PID 2636 wrote to memory of 2764	2636	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe	31
PID 2636 wrote to memory of 2764	2636	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe	31
PID 2636 wrote to memory of 2764	2636	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe	31
PID 2636 wrote to memory of 2764	2636	a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe	31
PID 2764 wrote to memory of 1212	2764	winver.exe	21
PID 2764 wrote to memory of 1116	2764	winver.exe	19
PID 2764 wrote to memory of 1172	2764	winver.exe	20
PID 2764 wrote to memory of 1212	2764	winver.exe	21
PID 2764 wrote to memory of 1444	2764	winver.exe	23

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:1212
- C:\Users\Admin\AppData\Local\Temp\a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe
  "C:\Users\Admin\AppData\Local\Temp\a5423d1e582c9d326ecbbd656f758a0d6278e28f5d09fe04fadfd8996ae9dc4cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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:2764

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1444

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/1116-27-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1116-28-0x0000000076F81000-0x0000000076F82000-memory.dmp

Filesize
4KB

Download
memory/1172-21-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1172-29-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1212-10-0x0000000076F81000-0x0000000076F82000-memory.dmp

Filesize
4KB

Download
memory/1212-23-0x0000000002540000-0x0000000002546000-memory.dmp

Filesize
24KB

Download
memory/1212-2-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1212-3-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1212-30-0x0000000002540000-0x0000000002546000-memory.dmp

Filesize
24KB

Download
memory/1212-4-0x00000000025C0000-0x00000000025C6000-memory.dmp

Filesize
24KB

Download
memory/1444-33-0x0000000076F81000-0x0000000076F82000-memory.dmp

Filesize
4KB

Download
memory/1444-32-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1444-26-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/2636-13-0x0000000001F90000-0x0000000002990000-memory.dmp

Filesize
10.0MB

Download
memory/2636-5-0x0000000001F90000-0x0000000002990000-memory.dmp

Filesize
10.0MB

Download
memory/2636-12-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2636-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2636-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2764-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2764-7-0x0000000077130000-0x0000000077131000-memory.dmp

Filesize
4KB

Download
memory/2764-8-0x000000007712F000-0x0000000077130000-memory.dmp

Filesize
4KB

Download
memory/2764-11-0x0000000076F30000-0x00000000770D9000-memory.dmp

Filesize
1.7MB

Download
memory/2764-31-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2764-9-0x000000007712F000-0x0000000077131000-memory.dmp

Filesize
8KB

Download