modiloader | cdb193314c1cf8c960cb20407ebd32ebe97caef67ffe8a1b174069f62f535e7b

Analysis

max time kernel
119s
max time network
28s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-09-2024 15:22

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General

Target

Trojan.Win32.Darkeye.exe
Size

90KB
MD5

a74d7423c25a37ebbd6b9ac9f11d7270
SHA1

0432d9da1dfad0442e2b837d7e310082908b49cd
SHA256

cdb193314c1cf8c960cb20407ebd32ebe97caef67ffe8a1b174069f62f535e7b
SHA512

6a24bd87982174af21480e1b6670d195591a81ae543043c224fd1f9acb76dee331ddb88b852920e56201228f8fa1b8cd4cc309bd93448439201deb3839864eac
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 Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2868-266-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
592	csrsll.exe
1852	csrsll.exe
2868	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
812	Trojan.Win32.Darkeye.exe
812	Trojan.Win32.Darkeye.exe
812	Trojan.Win32.Darkeye.exe
812	Trojan.Win32.Darkeye.exe
812	Trojan.Win32.Darkeye.exe

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2256-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-86-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-96-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2256-85-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/812-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/812-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2256-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/812-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/812-112-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/812-111-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/812-114-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2256-110-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/812-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/812-141-0x00000000025C0000-0x0000000002613000-memory.dmp	upx
behavioral1/files/0x000b000000012250-139.dat	upx
behavioral1/memory/812-157-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/592-222-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/592-219-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2868-253-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/592-259-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/812-262-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1852-263-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2868-266-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-457978338-2990298471-2379561640-1000\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 2256 set thread context of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 592 set thread context of 1852	592	csrsll.exe	34
PID 592 set thread context of 2868	592	csrsll.exe	35

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.Darkeye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.Darkeye.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe
Token: SeDebugPrivilege	1852	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2256	Trojan.Win32.Darkeye.exe
812	Trojan.Win32.Darkeye.exe
592	csrsll.exe
1852	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 2256 wrote to memory of 812	2256	Trojan.Win32.Darkeye.exe	29
PID 812 wrote to memory of 1680	812	Trojan.Win32.Darkeye.exe	30
PID 812 wrote to memory of 1680	812	Trojan.Win32.Darkeye.exe	30
PID 812 wrote to memory of 1680	812	Trojan.Win32.Darkeye.exe	30
PID 812 wrote to memory of 1680	812	Trojan.Win32.Darkeye.exe	30
PID 1680 wrote to memory of 980	1680	cmd.exe	32
PID 1680 wrote to memory of 980	1680	cmd.exe	32
PID 1680 wrote to memory of 980	1680	cmd.exe	32
PID 1680 wrote to memory of 980	1680	cmd.exe	32
PID 812 wrote to memory of 592	812	Trojan.Win32.Darkeye.exe	33
PID 812 wrote to memory of 592	812	Trojan.Win32.Darkeye.exe	33
PID 812 wrote to memory of 592	812	Trojan.Win32.Darkeye.exe	33
PID 812 wrote to memory of 592	812	Trojan.Win32.Darkeye.exe	33
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 1852	592	csrsll.exe	34
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35
PID 592 wrote to memory of 2868	592	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Darkeye.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\MLYFO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1680
  - - 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:980
- - 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:592
  - - 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:1852
  - - 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:2868

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MLYFO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
378bc3a000b8ce6d957f92bac1d84f6e

SHA1
bef5c0aeea9330a7053785d0b69b1622574a29b0

SHA256
d114c5c519fbcf3412028f26404c1f52db7baaadf6cdba474d344ee04eeabf8d

SHA512
64e1f7d092784c89cc0d3fffd03e8fa8e74ba67de9a53435354446f4d49b7b01cc7e2a8bbd29e2b77b356164294283ef87d77e966b52d676bc062a20b9744c92

Download Submit
memory/592-219-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-161-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/592-182-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/592-259-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-222-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/592-171-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/812-141-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/812-157-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-262-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-114-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-104-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/812-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-111-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/812-112-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1852-263-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2256-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-73-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2256-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-98-0x0000000001EF0000-0x0000000001F43000-memory.dmp

Filesize
332KB

Download
memory/2256-83-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2256-110-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-85-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-96-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-86-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-63-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2256-43-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2256-30-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2256-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2256-17-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2256-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2256-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2256-7-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2868-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2868-266-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads