modiloader | df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-11-2024 06:06

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General

Target

df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
Size

94KB
MD5

85705de5b77961a6befd31dd39ac5af5
SHA1

2bca71323a605920e83cd397f87003d7bf38938d
SHA256

df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837
SHA512

1231877ccb8f09da17953742f51a600781d4dc09a8dc72ac0648f102930052877d166904030afde83129e9cf34de06c713c1ecd09460b8308fac979b040fb70e
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/:/pdyLALwACPmV3NYaYLiwIt3raA5BRfM

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/3436-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3436-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe

Executes dropped EXE 3 IoCs

pid	Process
3752	csrsll.exe
1400	csrsll.exe
3436	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-1-5-21-4050598569-1597076380-177084960-1000\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 2688 set thread context of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 3752 set thread context of 1400	3752	csrsll.exe	96
PID 3752 set thread context of 3436	3752	csrsll.exe	97

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2688-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/4956-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4956-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4956-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2688-13-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/files/0x0003000000022efc-27.dat	upx
behavioral2/memory/3752-34-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3752-38-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3752-39-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3436-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-42-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3436-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3436-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3752-54-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3436-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1400-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3436-61-0x0000000000400000-0x0000000000414000-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	reg.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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe
Token: SeDebugPrivilege	1400	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
3752	csrsll.exe
1400	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 2688 wrote to memory of 4956	2688	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	86
PID 4956 wrote to memory of 1204	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	89
PID 4956 wrote to memory of 1204	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	89
PID 4956 wrote to memory of 1204	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	89
PID 1204 wrote to memory of 3768	1204	cmd.exe	93
PID 1204 wrote to memory of 3768	1204	cmd.exe	93
PID 1204 wrote to memory of 3768	1204	cmd.exe	93
PID 4956 wrote to memory of 3752	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	95
PID 4956 wrote to memory of 3752	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	95
PID 4956 wrote to memory of 3752	4956	df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe	95
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 1400	3752	csrsll.exe	96
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97
PID 3752 wrote to memory of 3436	3752	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
"C:\Users\Admin\AppData\Local\Temp\df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe
  "C:\Users\Admin\AppData\Local\Temp\df6e95602f250f4c5c538811b96df82b2307b92b2dff8b2645a0362273a43837.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4956
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KDXBE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1204
  - - 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:3768
- - 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:3752
  - - 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:1400
  - - 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:3436

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
969eb00444e9c732fd9916d9282742b7

SHA1
ecffe62c2163734db840b4503b0459e97898f96c

SHA256
95ff0f162ceccfe7c0e22f701c52a631a360b259a39dd56a8b7c8cad3c0c1c3e

SHA512
ac8b4c127d919ba9a4cac6b56c996d1038c991347601354532c407a9e59c427669b83fd76897e5ff0dc426cec027e136b9d5c1b81ccf5c17741fbd1c359577a2

Download Submit
memory/1400-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-3-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/2688-4-0x0000000002930000-0x0000000002931000-memory.dmp

Filesize
4KB

Download
memory/2688-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2688-13-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3436-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3752-38-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3752-39-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3752-34-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3752-54-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4956-42-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4956-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4956-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4956-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4956-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4956-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads