modiloader | 8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 20:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
Size

90KB
MD5

2fc207ebed569bfcf37b12744b11e280
SHA1

fcaba9396d2873db369246af0501df001a9893f5
SHA256

8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317
SHA512

1e68d6dd3b8d57fea3628870a0d1e4c1526a7dc4e381667303a275df8ad53cc34b97e4ac5c050d8e4aa623bc9f1b58eabe6dc7fbed12f6fa5751acdb1636bf68
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3O

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 4 IoCs

resource	yara_rule
behavioral2/memory/5060-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5060-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5060-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5060-63-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe

Executes dropped EXE 3 IoCs

pid	Process
4520	csrsll.exe
2336	csrsll.exe
5060	csrsll.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-1-5-21-3442511616-637977696-3186306149-1000\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 968 set thread context of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 4520 set thread context of 2336	4520	csrsll.exe	88
PID 4520 set thread context of 5060	4520	csrsll.exe	89

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/968-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/968-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2392-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2392-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2392-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/968-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cba-29.dat	upx
behavioral2/memory/4520-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2392-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4520-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5060-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5060-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5060-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4520-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5060-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5060-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2392-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2336-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5060-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe
Token: SeDebugPrivilege	2336	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
4520	csrsll.exe
2336	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 968 wrote to memory of 2392	968	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	82
PID 2392 wrote to memory of 4936	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	83
PID 2392 wrote to memory of 4936	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	83
PID 2392 wrote to memory of 4936	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	83
PID 4936 wrote to memory of 2924	4936	cmd.exe	86
PID 4936 wrote to memory of 2924	4936	cmd.exe	86
PID 4936 wrote to memory of 2924	4936	cmd.exe	86
PID 2392 wrote to memory of 4520	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	87
PID 2392 wrote to memory of 4520	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	87
PID 2392 wrote to memory of 4520	2392	8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe	87
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 2336	4520	csrsll.exe	88
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89
PID 4520 wrote to memory of 5060	4520	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
"C:\Users\Admin\AppData\Local\Temp\8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:968
- C:\Users\Admin\AppData\Local\Temp\8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe
  "C:\Users\Admin\AppData\Local\Temp\8db91f372698c41aafe4e13f78c0b8044a42e5789060a99d2d23a35e2637a317N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VEQVR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4936
  - - 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:2924
- - 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:4520
  - - 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:2336
  - - 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:5060

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\VEQVR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e7997555bb62432f7b0845de63f03cdd

SHA1
559f4eef33758d9731776ef3f6ba9257803b0b95

SHA256
7a2acc2ceea8f09bb5e82c1e03cbb789ef5f8014f7732c0661d85f6e3aad9bd8

SHA512
38afd6842b0bdb5f54319ec9fd5ceaa23c2f1db1bf8a0fa0fa2f8e51d25adef3a6afed6d30884c6e6f77ce3792115b6e3bbdc075eb71ecefafe4c3b463fb654e

Download Submit
memory/968-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download
memory/968-4-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/968-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/968-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/968-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/968-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2336-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2392-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2392-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2392-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2392-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2392-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2392-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4520-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4520-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4520-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4520-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5060-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads