modiloader | 20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 21:45

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General

Target

20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
Size

90KB
MD5

3ebb637d29d93e37ab20ea79ca85b4b0
SHA1

b7f1b17c10fb8f5ee56341b4677decc9f0d314bd
SHA256

20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84
SHA512

6c6a610d6ddd67a67461bd5d84a3611a153142a67bc857c7a093769f781d43a9582dd442091839641551a8a396b877e20b731f19da5bdc5d5fda8ca713e79bd8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDD:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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 1 IoCs

resource	yara_rule
behavioral1/memory/1868-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2936	csrsll.exe
1672	csrsll.exe
1868	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.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-1-5-21-3692679935-4019334568-335155002-1000\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 2740 set thread context of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2936 set thread context of 1672	2936	csrsll.exe	35
PID 2936 set thread context of 1868	2936	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2740-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2324-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2324-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-108-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2324-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2324-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2324-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2324-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x002f000000015e5b-133.dat	upx
behavioral1/memory/2324-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2324-152-0x0000000002740000-0x0000000002793000-memory.dmp	upx
behavioral1/memory/2936-154-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2936-176-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1868-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2936-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2324-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1672-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-260-0x0000000000400000-0x0000000000414000-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	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	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe

Suspicious use of AdjustPrivilegeToken 62 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe
Token: SeDebugPrivilege	1672	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
2936	csrsll.exe
1672	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2740 wrote to memory of 2324	2740	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	30
PID 2324 wrote to memory of 1492	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	31
PID 2324 wrote to memory of 1492	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	31
PID 2324 wrote to memory of 1492	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	31
PID 2324 wrote to memory of 1492	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	31
PID 1492 wrote to memory of 1140	1492	cmd.exe	33
PID 1492 wrote to memory of 1140	1492	cmd.exe	33
PID 1492 wrote to memory of 1140	1492	cmd.exe	33
PID 1492 wrote to memory of 1140	1492	cmd.exe	33
PID 2324 wrote to memory of 2936	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	34
PID 2324 wrote to memory of 2936	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	34
PID 2324 wrote to memory of 2936	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	34
PID 2324 wrote to memory of 2936	2324	20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe	34
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1672	2936	csrsll.exe	35
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36
PID 2936 wrote to memory of 1868	2936	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
"C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe
  "C:\Users\Admin\AppData\Local\Temp\20f0e63679afcd790210376297f28522caadb128b15c1fdb4921336583627d84N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\POSFJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1492
  - - 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:1140
- - 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:2936
  - - 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:1672
  - - 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:1868

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

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\POSFJ.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fcad0836c4cfefa1d035095e1d7a6ec8

SHA1
2207c42b935eb670ae8ebae575cbdaef5550e4d3

SHA256
5a9e4de26b5fbc95de19a7d5d087a61978b02427f349646ecb33ff41e73b6d18

SHA512
6315570cba602feb8815c7fbab5dc3db4d515ca3b498957b209dc973e99faa02838afdb2369965b491fd3f7a8393ee77d90b0a153ca9de47aad3c41ef3e90128

Download Submit
memory/1672-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2324-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-152-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2324-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2324-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2740-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2740-63-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2740-92-0x0000000002730000-0x0000000002783000-memory.dmp

Filesize
332KB

Download
memory/2740-81-0x0000000000520000-0x0000000000522000-memory.dmp

Filesize
8KB

Download
memory/2740-73-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2740-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2740-30-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2740-43-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2740-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2740-18-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2740-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2740-7-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2740-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2740-108-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-176-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-179-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2936-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-167-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2936-157-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2936-154-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads