modiloader | bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 22:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
Size

90KB
MD5

b56ab0ec1a1d308b6589aa919500c790
SHA1

a3a983a22a217e29e9a6891324de941824d2bbdb
SHA256

bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5
SHA512

ed9f29cd91a3fd00856ca9edb48c9da73acba42073bbbd692fffe96511611d0c54abb238f38f2cb37063655b6fe43ebb6be12af894c59a3c87e386c4f72acfef
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK: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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2024-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2024-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2024-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2024-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe

Executes dropped EXE 3 IoCs

pid	Process
1500	csrsll.exe
2848	csrsll.exe
2024	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1808-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1808-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1712-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1712-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1712-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1808-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x00070000000236aa-29.dat	upx
behavioral2/memory/1500-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1712-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1500-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1500-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2024-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2024-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2024-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2024-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2024-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1500-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1712-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2848-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2024-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2170637797-568393320-3232933035-1000\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 1808 set thread context of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1500 set thread context of 2848	1500	csrsll.exe	103
PID 1500 set thread context of 2024	1500	csrsll.exe	104

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	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.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
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	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
1500	csrsll.exe
2848	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1808 wrote to memory of 1712	1808	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	95
PID 1712 wrote to memory of 1140	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	96
PID 1712 wrote to memory of 1140	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	96
PID 1712 wrote to memory of 1140	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	96
PID 1140 wrote to memory of 784	1140	cmd.exe	101
PID 1140 wrote to memory of 784	1140	cmd.exe	101
PID 1140 wrote to memory of 784	1140	cmd.exe	101
PID 1712 wrote to memory of 1500	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	102
PID 1712 wrote to memory of 1500	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	102
PID 1712 wrote to memory of 1500	1712	bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe	102
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2848	1500	csrsll.exe	103
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104
PID 1500 wrote to memory of 2024	1500	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
"C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
  "C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HDYCP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1140
  - - 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:784
- - 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:1500
  - - 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:2848
  - - 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:2024

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3804,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4220 /prefetch:8
1⤵
PID:4392

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\HDYCP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a8a5be691dddb2fb61d84ea13f54ad57

SHA1
7b40f9884ded8cecf6a682ff951ecf9636d31034

SHA256
039dd4470f025c49ae565fb50238fbf47aa67168fa2f2b74b1f717da94b850c5

SHA512
ae66787507dc763b72352669d78e8dc253cea8244e12cf6243273266f9cf2a80dc631b36f1a16bec58ee087a6db8e92570169d7c3f40b2177b7b2a3164d4a30d

Download Submit
memory/1500-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1500-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1500-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1500-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1712-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1808-3-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/1808-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1808-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1808-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1808-6-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/1808-4-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2024-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2024-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads