modiloader | 1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 00:48

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General

Target

1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
Size

94KB
MD5

490d278fe3c4e90942101a74b2cd0020
SHA1

1590fd87a0ff25e57f05dc1ebea3703edea197fb
SHA256

1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1
SHA512

a9cc92cd58784332a460fb13d389a6a255e4103ecf2b9773bb6278b75f542741fea3d179556ee9553e2e809d2572ad8ead76d3ef61a44a56dfcc798784629e04
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/0:/pdyLALwACPmV3NYaYLiwIt3raA5BRfv

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/8216-147859-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
162484	csrsll.exe
67468	csrsll.exe
8216	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.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-1-5-21-3533259084-2542256011-65585152-1000\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 2816 set thread context of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 162484 set thread context of 67468	162484	csrsll.exe	36
PID 162484 set thread context of 8216	162484	csrsll.exe	37

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2816-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2816-150-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2816-30563-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2816-73919-0x00000000004F0000-0x0000000000546000-memory.dmp	upx
behavioral1/memory/162240-73922-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/162240-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/162240-73927-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/162240-73928-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2816-73929-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/162240-73930-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c000000012259-73955.dat	upx
behavioral1/memory/162240-90082-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/162484-116526-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/8216-147846-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/162484-147850-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/162240-147856-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/67468-147858-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/8216-147859-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 53 IoCs

description	pid	Process
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe
Token: SeDebugPrivilege	67468	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
162484	csrsll.exe
67468	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 2816 wrote to memory of 162240	2816	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	31
PID 162240 wrote to memory of 162384	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	32
PID 162240 wrote to memory of 162384	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	32
PID 162240 wrote to memory of 162384	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	32
PID 162240 wrote to memory of 162384	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	32
PID 162384 wrote to memory of 162448	162384	cmd.exe	34
PID 162384 wrote to memory of 162448	162384	cmd.exe	34
PID 162384 wrote to memory of 162448	162384	cmd.exe	34
PID 162384 wrote to memory of 162448	162384	cmd.exe	34
PID 162240 wrote to memory of 162484	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	35
PID 162240 wrote to memory of 162484	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	35
PID 162240 wrote to memory of 162484	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	35
PID 162240 wrote to memory of 162484	162240	1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe	35
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 67468	162484	csrsll.exe	36
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37
PID 162484 wrote to memory of 8216	162484	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
"C:\Users\Admin\AppData\Local\Temp\1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Users\Admin\AppData\Local\Temp\1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe
  "C:\Users\Admin\AppData\Local\Temp\1f836787a50e405084578b2eb0be8dbdf7e87ce1689b5ebf43c71aeb9fd813c1.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:162240
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\QHGRO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:162384
  - - 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:162448
- - 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:162484
  - - 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:67468
  - - 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:8216

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\QHGRO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
d5559bd518cfd80f16c26335ad780d6f

SHA1
692c82e4a93a673cd3f9d9764ef8ce641cc6543f

SHA256
5954b75de200c2d9e91544d254c95abbac0705542af2d40307059cadd246420c

SHA512
c5ed2f0f6a0a06127c7a11933e732a61b2002530623136dfbe3d1de90fbdefc19a380824921c7ef846500c122305c08f27e8c71f8301cb4d5a26be83b21c8f62

Download Submit
memory/2816-73919-0x00000000004F0000-0x0000000000546000-memory.dmp

Filesize
344KB

Download
memory/2816-150-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2816-30563-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2816-31883-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2816-73929-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2816-13-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2816-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2816-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/8216-147859-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/8216-147846-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/67468-147858-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-73930-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-90082-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-73927-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-73926-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/162240-73971-0x00000000025D0000-0x0000000002626000-memory.dmp

Filesize
344KB

Download
memory/162240-73970-0x00000000025D0000-0x0000000002626000-memory.dmp

Filesize
344KB

Download
memory/162240-73969-0x00000000025D0000-0x0000000002626000-memory.dmp

Filesize
344KB

Download
memory/162240-73928-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-104076-0x00000000025D0000-0x0000000002626000-memory.dmp

Filesize
344KB

Download
memory/162240-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-73924-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-73922-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162240-147856-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/162484-147850-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/162484-116526-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads