modiloader | 1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 16:56

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General

Target

1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
Size

90KB
MD5

a9c23a3c54fccb38f85e76d76d2ecf00
SHA1

03dea8923457a00d285f117ac2ecfede8f74a99a
SHA256

1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873
SHA512

f1ea0b03909b6700dfe66aba3faee9d38e0d43e747182afc86708f4b347bf8a0b025aef1a9ed045bc23492bc5e2f0fed22d6af7824310e6fd84191df2aa7b567
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/1612-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
736	csrsll.exe
2480	csrsll.exe
1612	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.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 2100 set thread context of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 736 set thread context of 2480	736	csrsll.exe	36
PID 736 set thread context of 1612	736	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-90-0x0000000002780000-0x00000000027D3000-memory.dmp	upx
behavioral1/memory/2664-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2100-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-132.dat	upx
behavioral1/memory/2664-134-0x0000000002930000-0x0000000002983000-memory.dmp	upx
behavioral1/memory/2664-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/736-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1612-245-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/736-247-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2480-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1612-258-0x0000000000400000-0x0000000000414000-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	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe
Token: SeDebugPrivilege	2480	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
736	csrsll.exe
2480	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2100 wrote to memory of 2664	2100	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	31
PID 2664 wrote to memory of 768	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	32
PID 2664 wrote to memory of 768	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	32
PID 2664 wrote to memory of 768	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	32
PID 2664 wrote to memory of 768	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	32
PID 768 wrote to memory of 2368	768	cmd.exe	34
PID 768 wrote to memory of 2368	768	cmd.exe	34
PID 768 wrote to memory of 2368	768	cmd.exe	34
PID 768 wrote to memory of 2368	768	cmd.exe	34
PID 2664 wrote to memory of 736	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	35
PID 2664 wrote to memory of 736	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	35
PID 2664 wrote to memory of 736	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	35
PID 2664 wrote to memory of 736	2664	1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe	35
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 2480	736	csrsll.exe	36
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37
PID 736 wrote to memory of 1612	736	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
"C:\Users\Admin\AppData\Local\Temp\1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe
  "C:\Users\Admin\AppData\Local\Temp\1bc38ab10169bf8c2ee5361c3e421eca347c66f591e2b634075d3c99600ad873N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SSEMD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:768
  - - 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:2368
- - 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:736
  - - 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:2480
  - - 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:1612

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\SSEMD.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
877758a863bddf2eaed6732dfc4cb7b7

SHA1
0bf5f4767f4d6efcc0807869a56444bd5aee46a2

SHA256
57f4b3785d67ad895b70d7e34da0954107c7312fd559fef6b90a9da957e7087e

SHA512
e3abc3442826c7098f6ae2d84824ea848bc7c0ceaa893b4feb2b14b675776082bfe3d50ea872d05a0a0680a51d5dcb46a1bb3e5cf4f44b74ccb996f6d9f357ad

Download Submit
memory/736-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/736-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/736-176-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/736-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/736-247-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-245-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1612-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2100-90-0x0000000002780000-0x00000000027D3000-memory.dmp

Filesize
332KB

Download
memory/2100-41-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2100-79-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/2100-71-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2100-61-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2100-29-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2100-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

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

Filesize
332KB

Download
memory/2100-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2100-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2100-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2480-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-148-0x0000000002930000-0x0000000002983000-memory.dmp

Filesize
332KB

Download
memory/2664-147-0x0000000002930000-0x0000000002983000-memory.dmp

Filesize
332KB

Download
memory/2664-134-0x0000000002930000-0x0000000002983000-memory.dmp

Filesize
332KB

Download
memory/2664-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-239-0x0000000002930000-0x0000000002983000-memory.dmp

Filesize
332KB

Download
memory/2664-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads