modiloader | a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 1 IoCs

resource	yara_rule
behavioral1/memory/1040-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1900	csrsll.exe
2572	csrsll.exe
1040	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.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-1-5-21-1488793075-819845221-1497111674-1000\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 2148 set thread context of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 1900 set thread context of 2572	1900	csrsll.exe	36
PID 1900 set thread context of 1040	1900	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2148-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2148-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1940-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1940-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1940-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2148-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2148-85-0x0000000000090000-0x0000000000190000-memory.dmp	upx
behavioral1/memory/2148-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1940-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1940-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1940-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000900000001613e-129.dat	upx
behavioral1/memory/1940-131-0x0000000000720000-0x0000000000773000-memory.dmp	upx
behavioral1/memory/1940-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1940-251-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1900-245-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1040-244-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1040-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2572-256-0x0000000000400000-0x000000000040B000-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	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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe
Token: SeDebugPrivilege	2572	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
1900	csrsll.exe
2572	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 2148 wrote to memory of 1940	2148	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	31
PID 1940 wrote to memory of 1724	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	32
PID 1940 wrote to memory of 1724	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	32
PID 1940 wrote to memory of 1724	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	32
PID 1940 wrote to memory of 1724	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	32
PID 1724 wrote to memory of 1736	1724	cmd.exe	34
PID 1724 wrote to memory of 1736	1724	cmd.exe	34
PID 1724 wrote to memory of 1736	1724	cmd.exe	34
PID 1724 wrote to memory of 1736	1724	cmd.exe	34
PID 1940 wrote to memory of 1900	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	35
PID 1940 wrote to memory of 1900	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	35
PID 1940 wrote to memory of 1900	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	35
PID 1940 wrote to memory of 1900	1940	a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe	35
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 2572	1900	csrsll.exe	36
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37
PID 1900 wrote to memory of 1040	1900	csrsll.exe	37

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:2148
- C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe
  "C:\Users\Admin\AppData\Local\Temp\a104f8af18728ceab720fd260a18f5d94d52efa8f2149dcc4e37dbdc4536fca6N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BWTSW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1724
  - - 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:1736
- - 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:1900
  - - 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:2572
  - - 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:1040

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\BWTSW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
05a2ff93ea495d03aa47463111af64bd

SHA1
40bedbbd8a44af1ba327455efc88115d7e042676

SHA256
e4a556f2cf4429d34f9be8686a027a7ee2043a59f86220e11364b92df7213127

SHA512
3fe3de69168a7f6d9f68e2dd478db64aa2ee9b3a17111fc70de97697f551acbe868da9a25c1a0c46e91abbfed46ac38e334475bbb2a880980a7e26b9e55fe250

Download Submit
memory/1040-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1040-244-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-245-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1900-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1900-163-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1900-174-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1900-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1900-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1940-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-209-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/1940-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1940-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-251-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-208-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/1940-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-150-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/1940-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1940-144-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/1940-145-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/1940-131-0x0000000000720000-0x0000000000773000-memory.dmp

Filesize
332KB

Download
memory/2148-61-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/2148-85-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2148-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-29-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2148-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2148-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2148-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-86-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2148-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-71-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2148-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-79-0x00000000004D0000-0x00000000004D2000-memory.dmp

Filesize
8KB

Download
memory/2148-15-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2148-5-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2148-3-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2572-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads