modiloader | a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52

Analysis

max time kernel
149s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 06:32

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General

Target

a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
Size

90KB
MD5

6c793280169c3d751d10fa5389acc319
SHA1

d0989bffdf7c0073b92e0d749644009632106c59
SHA256

a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52
SHA512

1984ee51d7563f78638413e02160b6e5e75cd1a2228f837b1a27cf93a9e3aa134bc959e4387babc92c14b577fab8889d786ac72973005752c55ddf958ee2234e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3V

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/2108-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2384	csrsll.exe
1368	csrsll.exe
2108	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.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-1-5-21-2703099537-420551529-3771253338-1000\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 2776 set thread context of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2384 set thread context of 1368	2384	csrsll.exe	35
PID 2384 set thread context of 2108	2384	csrsll.exe	36

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2776-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2776-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2776-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2776-80-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2776-78-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2424-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2424-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2776-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2424-135-0x00000000026D0000-0x0000000002723000-memory.dmp	upx
behavioral1/files/0x00090000000120fe-133.dat	upx
behavioral1/memory/2384-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2424-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2384-211-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2384-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2108-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2424-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1368-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2108-261-0x0000000000400000-0x0000000000414000-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	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	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
2384	csrsll.exe
1368	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2776 wrote to memory of 2424	2776	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	30
PID 2424 wrote to memory of 1492	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	31
PID 2424 wrote to memory of 1492	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	31
PID 2424 wrote to memory of 1492	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	31
PID 2424 wrote to memory of 1492	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	31
PID 1492 wrote to memory of 3036	1492	cmd.exe	33
PID 1492 wrote to memory of 3036	1492	cmd.exe	33
PID 1492 wrote to memory of 3036	1492	cmd.exe	33
PID 1492 wrote to memory of 3036	1492	cmd.exe	33
PID 2424 wrote to memory of 2384	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	34
PID 2424 wrote to memory of 2384	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	34
PID 2424 wrote to memory of 2384	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	34
PID 2424 wrote to memory of 2384	2424	a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe	34
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 1368	2384	csrsll.exe	35
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36
PID 2384 wrote to memory of 2108	2384	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
"C:\Users\Admin\AppData\Local\Temp\a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Users\Admin\AppData\Local\Temp\a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe
  "C:\Users\Admin\AppData\Local\Temp\a85cb077adcdbc52fc37cd69d1b33b42cc8e308404daf7177dcf8ab334b40d52.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\EDRHU.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:3036
- - 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:2384
  - - 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:1368
  - - 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:2108

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\EDRHU.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9935e3f3d465cdcf98889a13542d125c

SHA1
51a360bdd66372e4b8ea6a4359ec03b8554dc97b

SHA256
256df036c66b1dd252ee7f2011165a70c472c136bdb01d24d61b8c6c266ddf30

SHA512
deb90ddba0239795a58d5ddca278a5db746c6de102d6564e5e0eaaed8e822c705a3196298ce6b8886763a14c0ea3bcac085a8d3e81c4251162afe36d02aae711

Download Submit
memory/1368-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2108-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2108-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2384-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-166-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2384-177-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2384-211-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2384-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2424-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-135-0x00000000026D0000-0x0000000002723000-memory.dmp

Filesize
332KB

Download
memory/2424-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-241-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2424-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-240-0x00000000026D0000-0x0000000002723000-memory.dmp

Filesize
332KB

Download
memory/2424-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2424-148-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2776-70-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2776-92-0x0000000002550000-0x00000000025A3000-memory.dmp

Filesize
332KB

Download
memory/2776-60-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2776-78-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-79-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/2776-80-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-40-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2776-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2776-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2776-28-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2776-15-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2776-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads