modiloader | df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 08:18

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General

Target

df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
Size

90KB
MD5

2a1ae7a89d765c68a33dcbb976e50032
SHA1

0f469dc9a436ee2d74353426f61c7bd7e93ebce1
SHA256

df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d
SHA512

1cca927d492a51bb6095e5a2aa4449a82cab71006c37d9fcdc7ee285c7eb62518c1bd135524ae4b748237348166b74267d4ed1e088fef5f3eb6d97acc5ff71b9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDc:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE36

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/2076-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2076-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2076-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2076-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe

Executes dropped EXE 3 IoCs

pid	Process
4608	csrsll.exe
3852	csrsll.exe
2076	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-1-5-21-940901362-3608833189-1915618603-1000\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 460 set thread context of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 4608 set thread context of 3852	4608	csrsll.exe	90
PID 4608 set thread context of 2076	4608	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/460-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/460-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4564-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4564-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/460-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4564-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9c-29.dat	upx
behavioral2/memory/4564-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4608-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2076-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2076-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4608-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4608-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2076-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2076-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4564-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2076-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3852-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2076-62-0x0000000000400000-0x0000000000414000-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	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe
Token: SeDebugPrivilege	3852	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
4608	csrsll.exe
3852	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 460 wrote to memory of 4564	460	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	83
PID 4564 wrote to memory of 1528	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	84
PID 4564 wrote to memory of 1528	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	84
PID 4564 wrote to memory of 1528	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	84
PID 1528 wrote to memory of 608	1528	cmd.exe	88
PID 1528 wrote to memory of 608	1528	cmd.exe	88
PID 1528 wrote to memory of 608	1528	cmd.exe	88
PID 4564 wrote to memory of 4608	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	89
PID 4564 wrote to memory of 4608	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	89
PID 4564 wrote to memory of 4608	4564	df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe	89
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 3852	4608	csrsll.exe	90
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91
PID 4608 wrote to memory of 2076	4608	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
"C:\Users\Admin\AppData\Local\Temp\df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:460
- C:\Users\Admin\AppData\Local\Temp\df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe
  "C:\Users\Admin\AppData\Local\Temp\df9a39d561b39730b10026de1e4551c85827ce1e2d163a92d1a062ebef405b2d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SRDLC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1528
  - - 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:608
- - 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:4608
  - - 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:3852
  - - 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:2076

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\SRDLC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fabaf38b9e66a5fce7159f03778b45c6

SHA1
afa0a0c2250390036e68fb74d0c06be2858937cb

SHA256
27561347042136e918fc1f55a785eaf26fbb9ef59a7e4acf98129eb90dff13d4

SHA512
cf82e1b61ac4b24aea5096adfde03fcfe9b4f71a5103e66a4ba94f5a307186da09e41e00cfaad075b3771414a684aed9d61c072640862941b5794ed428745db3

Download Submit
memory/460-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/460-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/460-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download
memory/2076-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3852-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4564-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4608-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4608-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4608-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads