modiloader | d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/12/2024, 15:33

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General

Target

d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
Size

90KB
MD5

bf8072e383a9ef054f328c2835b72970
SHA1

55132dcc47fcc74a83f828e00566c16b76b82c1e
SHA256

d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48
SHA512

9464b70e7fd81bd65252bc83cef28e079a2debe48ee69d1d58ecd7b139b52136d66b054e211d3f7bbc53f9651c255152da1901668c1dce2fb487e3457a916916
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDc:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/1756-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1632	csrsll.exe
2008	csrsll.exe
1756	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1632 set thread context of 2008	1632	csrsll.exe	36
PID 1632 set thread context of 1756	1632	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1288-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1288-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1280-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1288-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1280-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1280-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1288-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1280-145-0x00000000034C0000-0x0000000003513000-memory.dmp	upx
behavioral1/memory/1632-147-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a0000000120d6-146.dat	upx
behavioral1/memory/1280-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-200-0x00000000034C0000-0x0000000003513000-memory.dmp	upx
behavioral1/memory/1756-243-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1280-248-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-245-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2008-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1756-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 7 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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.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	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe
Token: SeDebugPrivilege	2008	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
1632	csrsll.exe
2008	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1288 wrote to memory of 1280	1288	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	30
PID 1280 wrote to memory of 2792	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	31
PID 1280 wrote to memory of 2792	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	31
PID 1280 wrote to memory of 2792	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	31
PID 1280 wrote to memory of 2792	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	31
PID 2792 wrote to memory of 1152	2792	cmd.exe	33
PID 2792 wrote to memory of 1152	2792	cmd.exe	33
PID 2792 wrote to memory of 1152	2792	cmd.exe	33
PID 2792 wrote to memory of 1152	2792	cmd.exe	33
PID 1280 wrote to memory of 1632	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	34
PID 1280 wrote to memory of 1632	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	34
PID 1280 wrote to memory of 1632	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	34
PID 1280 wrote to memory of 1632	1280	d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe	34
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 2008	1632	csrsll.exe	36
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37
PID 1632 wrote to memory of 1756	1632	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
"C:\Users\Admin\AppData\Local\Temp\d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe
  "C:\Users\Admin\AppData\Local\Temp\d7da7c0f81045acd5c30c6b2547d823148665210fb7bd7836d3814f0bf0abc48N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BFUUH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2792
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1152
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1632
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2008
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1756

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\BFUUH.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
6856046cc9be808b97c175f772084932

SHA1
c1da9e309f8c401f4363fd5091660f4536f209e1

SHA256
28438ecce032683963eacc63183f60f468d58fec9b940a88e520123fac3a0170

SHA512
527eb7845b04850066040d77592241388facf6be83e93f57e71911c2988b9d0faf83f8c8a19319de3012dc05e3b9d15a6141c8cbae45fb234c6e8336ef595079

Download Submit
memory/1280-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-248-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-200-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/1280-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-145-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/1280-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1280-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1288-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1288-41-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/1288-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1288-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1288-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-29-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1288-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-79-0x0000000002570000-0x0000000002572000-memory.dmp

Filesize
8KB

Download
memory/1288-61-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1288-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-90-0x0000000002610000-0x0000000002663000-memory.dmp

Filesize
332KB

Download
memory/1288-71-0x0000000001E70000-0x0000000001E71000-memory.dmp

Filesize
4KB

Download
memory/1632-174-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1632-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1632-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1632-163-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1632-147-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1632-245-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1756-243-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2008-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads