modiloader | 9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 12:31

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General

Target

9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
Size

90KB
MD5

e1e83e7fd5bb2262dff784594339c3b0
SHA1

601d5be8f4bcbdf84f9e1928dd3157542f422d64
SHA256

9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834
SHA512

f0a46617142ffed602669bcbc94dcd0511ccfd9629d2034af9f6ab9e8f1c115acc857842c252099e8bccdc5cd655cdcd83aafc613561746c4006bccfb842b66e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDX:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE31

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/4676-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4676-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4676-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4676-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe

Executes dropped EXE 3 IoCs

pid	Process
3888	csrsll.exe
1540	csrsll.exe
4676	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 4016 set thread context of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 3888 set thread context of 1540	3888	csrsll.exe	93
PID 3888 set thread context of 4676	3888	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4016-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4016-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1596-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1596-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1596-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4016-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023c1a-29.dat	upx
behavioral2/memory/1596-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3888-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3888-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4676-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4676-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4676-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4676-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4676-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1596-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1540-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4676-61-0x0000000000400000-0x0000000000414000-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	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	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.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	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe
Token: SeDebugPrivilege	1540	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
3888	csrsll.exe
1540	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 4016 wrote to memory of 1596	4016	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	82
PID 1596 wrote to memory of 4948	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	83
PID 1596 wrote to memory of 4948	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	83
PID 1596 wrote to memory of 4948	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	83
PID 4948 wrote to memory of 1824	4948	cmd.exe	86
PID 4948 wrote to memory of 1824	4948	cmd.exe	86
PID 4948 wrote to memory of 1824	4948	cmd.exe	86
PID 1596 wrote to memory of 3888	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	87
PID 1596 wrote to memory of 3888	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	87
PID 1596 wrote to memory of 3888	1596	9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe	87
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 1540	3888	csrsll.exe	93
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94
PID 3888 wrote to memory of 4676	3888	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
"C:\Users\Admin\AppData\Local\Temp\9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe
  "C:\Users\Admin\AppData\Local\Temp\9927056e2a91e469d410c959bd9b3ca993685e1fe1f1e407433b52b402162834N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1596
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NVJTK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4948
  - - 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:1824
- - 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:3888
  - - 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:1540
  - - 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:4676

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\NVJTK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1619ccf7fb6ce2866f4ffe2d0dd87e55

SHA1
f20005fc0e7f12236c708a22354802362850f14b

SHA256
2b285636e0d3945284fe1314e74dc6d39d0671a093c503052defeb23221eb252

SHA512
a29ed64d88f25da57c63c64c00b545b5888b0bade74c977bbcace63efe1d18a334dfb776b01e4ddfd3e4e02444ca7fda94b1d423df4d964a157c25d441c0f476

Download Submit
memory/1540-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3888-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3888-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4016-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4016-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4676-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads