modiloader | a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-11-2024 01:13

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General

Target

a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
Size

90KB
MD5

f42b8eb70bc8cb1eab81c69de9f96c40
SHA1

7a8098db792e5138ab4241828ed8feb84156f793
SHA256

a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6
SHA512

a8b4abc1f6400adbebeafb5d15d1f92a6ec49fbeaa11429f8f5ee4a053fe015bd9cd42391bf4fa167220948e90d0fa491d9a90f2298b7c7dc2494bf250bdbe5d
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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1180-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-63-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe

Executes dropped EXE 3 IoCs

pid	Process
2100	csrsll.exe
4668	csrsll.exe
1180	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 1872 set thread context of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 2100 set thread context of 4668	2100	csrsll.exe	104
PID 2100 set thread context of 1180	2100	csrsll.exe	105

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1872-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1872-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5068-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5068-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5068-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5068-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1872-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b8f-30.dat	upx
behavioral2/memory/2100-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5068-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2100-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2100-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1180-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2100-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5068-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4668-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1180-63-0x0000000000400000-0x0000000000414000-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	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.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	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
2100	csrsll.exe
4668	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 1872 wrote to memory of 5068	1872	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	93
PID 5068 wrote to memory of 2800	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	98
PID 5068 wrote to memory of 2800	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	98
PID 5068 wrote to memory of 2800	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	98
PID 2800 wrote to memory of 3408	2800	cmd.exe	102
PID 2800 wrote to memory of 3408	2800	cmd.exe	102
PID 2800 wrote to memory of 3408	2800	cmd.exe	102
PID 5068 wrote to memory of 2100	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	103
PID 5068 wrote to memory of 2100	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	103
PID 5068 wrote to memory of 2100	5068	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	103
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 4668	2100	csrsll.exe	104
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105
PID 2100 wrote to memory of 1180	2100	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
"C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
  "C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QCAEH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2800
  - - 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:3408
- - 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:2100
  - - 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:4668
  - - 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:1180

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\QCAEH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4d1d545eeb50e70aa1c9afa3b2aac864

SHA1
bce36accec6f2694fd4ad9115052dba937f13532

SHA256
98d5963157dbc5febaf87eb26588f3b72ae28abb0cd54788fcf1f802acc30fa4

SHA512
e2419d8818f219f905844cf851a74432d2956db21db404cc20c62949d8712ee7cdb9cd752f9611df320b407cc202126afa0ba9ed8d4c339a484e6216618b88e2

Download Submit
memory/1180-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1872-7-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1872-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-6-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1872-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/1872-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2100-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4668-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/5068-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads