modiloader | 2e89a98cdfef59ab80a9a83e9940e7b064769cee70f62f94674cce771a8ed2ed

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
01/09/2024, 11:36

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General

Target

bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
Size

90KB
MD5

bdbe28c1801f2dab5a0f74b2a32d82a0
SHA1

985b6a713ad607136e13171d45b10c1ccc6c5a89
SHA256

2e89a98cdfef59ab80a9a83e9940e7b064769cee70f62f94674cce771a8ed2ed
SHA512

79ff9a316903cfb88c9ec3c9b900b7081d5e4035b3b5bfd6bd953451ba5e4d6392a700bdacc912def0a99f4f0ce3bb607a33ffbfa06a1b0b84fb39a18eff57dd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg: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/3692-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3692-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3692-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3692-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe

Executes dropped EXE 3 IoCs

pid	Process
4164	csrsll.exe
3792	csrsll.exe
3692	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3364-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3364-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3524-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3524-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3364-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3524-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d00000002343c-29.dat	upx
behavioral2/memory/4164-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3524-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4164-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4164-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3692-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3692-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3692-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3692-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3692-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4164-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3524-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3792-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3692-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4182098368-2521458979-3782681353-1000\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 3364 set thread context of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 4164 set thread context of 3792	4164	csrsll.exe	102
PID 4164 set thread context of 3692	4164	csrsll.exe	103

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	bdbe28c1801f2dab5a0f74b2a32d82a0N.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	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe
Token: SeDebugPrivilege	3792	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
4164	csrsll.exe
3792	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3364 wrote to memory of 3524	3364	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	94
PID 3524 wrote to memory of 4352	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	96
PID 3524 wrote to memory of 4352	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	96
PID 3524 wrote to memory of 4352	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	96
PID 4352 wrote to memory of 5028	4352	cmd.exe	100
PID 4352 wrote to memory of 5028	4352	cmd.exe	100
PID 4352 wrote to memory of 5028	4352	cmd.exe	100
PID 3524 wrote to memory of 4164	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	101
PID 3524 wrote to memory of 4164	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	101
PID 3524 wrote to memory of 4164	3524	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	101
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3792	4164	csrsll.exe	102
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103
PID 4164 wrote to memory of 3692	4164	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
"C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MANYV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4352
  - - 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:5028
- - 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:4164
  - - 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:3792
  - - 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:3692

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\MANYV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
277424e4de01f51e50d9532078c311fc

SHA1
344c5ac7dd0c55b9b01f53de4e2124f0a552fbbb

SHA256
c798b2c745f27d503d3d17cb574f00cee4225f4ec4e3c001802d3772e4efc3e5

SHA512
ccd5476e89523220d0b824ca177c4b4cc36508d980f8bf7fb95e63903f18d3e607d9482ed6a07cd45aae1bc1af06067ba381a85f37b13798ea9ec86e936fd979

Download Submit
memory/3364-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/3364-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/3364-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3364-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/3364-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3364-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3524-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3524-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3524-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3524-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3524-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3692-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3692-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3692-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3692-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3692-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3692-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3792-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4164-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4164-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4164-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4164-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads