b669035dc037386464387492db9364dba2e352aa52b5c4bfcade45c2d784b41b

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 15:56

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General

Target

DFI-6059.exe
Size

406KB
MD5

69a1012645e68ec71f61e3e623cc1802
SHA1

e9c94760b171eb223d28e66ac67e3fc50d1494df
SHA256

37cea6e5502e8caea195462fdb59b168d238617f2918f0562804f8e6bd2cd9d0
SHA512

b03906bb2a280f1609f5ed5d22116d238e5dc88b8f85ffe0cba99a4391265c457c08fe2d1adad2dd006115828bf530c32ace6e097b4d23fd7c9054c758cbc912
SSDEEP

6144:aJZj3XBjlkq27zgxRb01xJIdtNMlY0u0UC7lYA7C:+zZo7cvb0Jq0PL72Am

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1728	osign.exe
2428	AddInProcess32.exe

Loads dropped DLL 4 IoCs

pid	Process
2592	DFI-6059.exe
2592	DFI-6059.exe
1728	osign.exe
1728	osign.exe

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\sobm = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\osign.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1728 set thread context of 2428	1728	osign.exe	35
PID 2428 set thread context of 1288	2428	AddInProcess32.exe	21
PID 2060 set thread context of 1288	2060	systray.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	DFI-6059.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	osign.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2592	DFI-6059.exe
2592	DFI-6059.exe
2592	DFI-6059.exe
2592	DFI-6059.exe
1728	osign.exe
2428	AddInProcess32.exe
2428	AddInProcess32.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe
2060	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2428	AddInProcess32.exe
2428	AddInProcess32.exe
2428	AddInProcess32.exe
2060	systray.exe
2060	systray.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	DFI-6059.exe
Token: SeDebugPrivilege	1728	osign.exe
Token: SeDebugPrivilege	2428	AddInProcess32.exe
Token: SeDebugPrivilege	2060	systray.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 2132	2592	DFI-6059.exe	31
PID 2592 wrote to memory of 2132	2592	DFI-6059.exe	31
PID 2592 wrote to memory of 2132	2592	DFI-6059.exe	31
PID 2592 wrote to memory of 2132	2592	DFI-6059.exe	31
PID 2132 wrote to memory of 2572	2132	cmd.exe	33
PID 2132 wrote to memory of 2572	2132	cmd.exe	33
PID 2132 wrote to memory of 2572	2132	cmd.exe	33
PID 2132 wrote to memory of 2572	2132	cmd.exe	33
PID 2592 wrote to memory of 1728	2592	DFI-6059.exe	34
PID 2592 wrote to memory of 1728	2592	DFI-6059.exe	34
PID 2592 wrote to memory of 1728	2592	DFI-6059.exe	34
PID 2592 wrote to memory of 1728	2592	DFI-6059.exe	34
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1728 wrote to memory of 2428	1728	osign.exe	35
PID 1288 wrote to memory of 2060	1288	Explorer.EXE	36
PID 1288 wrote to memory of 2060	1288	Explorer.EXE	36
PID 1288 wrote to memory of 2060	1288	Explorer.EXE	36
PID 1288 wrote to memory of 2060	1288	Explorer.EXE	36
PID 2060 wrote to memory of 2848	2060	systray.exe	37
PID 2060 wrote to memory of 2848	2060	systray.exe	37
PID 2060 wrote to memory of 2848	2060	systray.exe	37
PID 2060 wrote to memory of 2848	2060	systray.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\DFI-6059.exe
  "C:\Users\Admin\AppData\Local\Temp\DFI-6059.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v sobm /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\osign.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v sobm /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\osign.exe"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2572
- - C:\Users\Admin\osign.exe
    "C:\Users\Admin\osign.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1728
  - - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2428
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2848

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\a6a0b8a6-4761-4357-9a31-0eca6ad70093\f.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
\Users\Admin\osign.exe

Filesize
406KB

MD5
69a1012645e68ec71f61e3e623cc1802

SHA1
e9c94760b171eb223d28e66ac67e3fc50d1494df

SHA256
37cea6e5502e8caea195462fdb59b168d238617f2918f0562804f8e6bd2cd9d0

SHA512
b03906bb2a280f1609f5ed5d22116d238e5dc88b8f85ffe0cba99a4391265c457c08fe2d1adad2dd006115828bf530c32ace6e097b4d23fd7c9054c758cbc912

Download Submit
memory/1728-388-0x0000000000710000-0x000000000071C000-memory.dmp

Filesize
48KB

Download
memory/1728-203-0x0000000000380000-0x00000000003EC000-memory.dmp

Filesize
432KB

Download
memory/2592-50-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-40-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-28-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-36-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-46-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-56-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-66-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-72-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-70-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-68-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-10-0x0000000074BB0000-0x0000000074C30000-memory.dmp

Filesize
512KB

Download
memory/2592-64-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-62-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-60-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-58-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-54-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-52-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2592-48-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-44-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-42-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-20-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-38-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-34-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-32-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-30-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-26-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-24-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-22-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-18-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-16-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-14-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-11-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-191-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2592-192-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-194-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-195-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-12-0x00000000004E0000-0x0000000000505000-memory.dmp

Filesize
148KB

Download
memory/2592-3-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-204-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-2-0x00000000004E0000-0x000000000050C000-memory.dmp

Filesize
176KB

Download
memory/2592-1-0x0000000000BD0000-0x0000000000C3C000-memory.dmp

Filesize
432KB

Download