modiloader | b12eacb58fdec15ef47381a179ad8436714dad9fb0ada9149cb0dd16a30335a7

Analysis

max time kernel
144s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 10:21

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General

Target

RFQ Engine & Piston overhaul,Doc.exe
Size

1.1MB
MD5

cb29d8a4b611a3b84ccf7c597d2a1c6e
SHA1

b0b066b3c6efe68a3a591e9d10f665b9d22cdf9f
SHA256

1ea1b7efa0e1f28a2c64bbe8db6629a1171041624c65f7a6293b8ea4563c4c4e
SHA512

8ae6434e0fc40e060ba3fa1b6968860043883679710d4a25b9925287c0a7c52cfce121b143d2fc10ce4bb9382d979da7f90900924d42008227a08395b3985173
SSDEEP

24576:jkcL46wGlmCQ4dviCbWBFREfuFlFnP06vtSRDZZdI39v5SPfWxtPtnwpZz2MXMGq:jQnrCxf2dsjrMSehaaVt

Score

10^/10

modiloader remcos ember luck discovery persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

Ember Luck

ogcmaw.duckdns.org:2404

emberluck.duckdns.org:2500

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-SKG82E
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2108-2-0x00000000031A0000-0x00000000041A0000-memory.dmp	modiloader_stage2

Executes dropped EXE 9 IoCs

pid	Process
2752	alpha.pif
2748	alpha.pif
2656	alpha.pif
2980	xpha.pif
2560	per.exe
2184	per.exe
2328	alpha.pif
2476	alpha.pif
1476	alpha.pif

Loads dropped DLL 4 IoCs

pid	Process
1608	cmd.exe
1608	cmd.exe
1608	cmd.exe
2656	alpha.pif

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\Bzaszylr = "C:\\Users\\Public\\Bzaszylr.url"	RFQ Engine & Piston overhaul,Doc.exe

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 10 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	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ Engine & Piston overhaul,Doc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SndVol.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2780	esentutl.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2108	RFQ Engine & Piston overhaul,Doc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1144	SndVol.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1144	SndVol.exe
1144	SndVol.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 1608	2108	RFQ Engine & Piston overhaul,Doc.exe	31
PID 2108 wrote to memory of 1608	2108	RFQ Engine & Piston overhaul,Doc.exe	31
PID 2108 wrote to memory of 1608	2108	RFQ Engine & Piston overhaul,Doc.exe	31
PID 2108 wrote to memory of 1608	2108	RFQ Engine & Piston overhaul,Doc.exe	31
PID 1608 wrote to memory of 2680	1608	cmd.exe	33
PID 1608 wrote to memory of 2680	1608	cmd.exe	33
PID 1608 wrote to memory of 2680	1608	cmd.exe	33
PID 1608 wrote to memory of 2680	1608	cmd.exe	33
PID 1608 wrote to memory of 2780	1608	cmd.exe	34
PID 1608 wrote to memory of 2780	1608	cmd.exe	34
PID 1608 wrote to memory of 2780	1608	cmd.exe	34
PID 1608 wrote to memory of 2780	1608	cmd.exe	34
PID 1608 wrote to memory of 2752	1608	cmd.exe	35
PID 1608 wrote to memory of 2752	1608	cmd.exe	35
PID 1608 wrote to memory of 2752	1608	cmd.exe	35
PID 1608 wrote to memory of 2752	1608	cmd.exe	35
PID 1608 wrote to memory of 2748	1608	cmd.exe	36
PID 1608 wrote to memory of 2748	1608	cmd.exe	36
PID 1608 wrote to memory of 2748	1608	cmd.exe	36
PID 1608 wrote to memory of 2748	1608	cmd.exe	36
PID 1608 wrote to memory of 2656	1608	cmd.exe	37
PID 1608 wrote to memory of 2656	1608	cmd.exe	37
PID 1608 wrote to memory of 2656	1608	cmd.exe	37
PID 1608 wrote to memory of 2656	1608	cmd.exe	37
PID 2656 wrote to memory of 2980	2656	alpha.pif	38
PID 2656 wrote to memory of 2980	2656	alpha.pif	38
PID 2656 wrote to memory of 2980	2656	alpha.pif	38
PID 2656 wrote to memory of 2980	2656	alpha.pif	38
PID 1608 wrote to memory of 2328	1608	cmd.exe	41
PID 1608 wrote to memory of 2328	1608	cmd.exe	41
PID 1608 wrote to memory of 2328	1608	cmd.exe	41
PID 1608 wrote to memory of 2328	1608	cmd.exe	41
PID 1608 wrote to memory of 2476	1608	cmd.exe	42
PID 1608 wrote to memory of 2476	1608	cmd.exe	42
PID 1608 wrote to memory of 2476	1608	cmd.exe	42
PID 1608 wrote to memory of 2476	1608	cmd.exe	42
PID 1608 wrote to memory of 1476	1608	cmd.exe	43
PID 1608 wrote to memory of 1476	1608	cmd.exe	43
PID 1608 wrote to memory of 1476	1608	cmd.exe	43
PID 1608 wrote to memory of 1476	1608	cmd.exe	43
PID 2108 wrote to memory of 1660	2108	RFQ Engine & Piston overhaul,Doc.exe	44
PID 2108 wrote to memory of 1660	2108	RFQ Engine & Piston overhaul,Doc.exe	44
PID 2108 wrote to memory of 1660	2108	RFQ Engine & Piston overhaul,Doc.exe	44
PID 2108 wrote to memory of 1660	2108	RFQ Engine & Piston overhaul,Doc.exe	44
PID 2108 wrote to memory of 1144	2108	RFQ Engine & Piston overhaul,Doc.exe	46
PID 2108 wrote to memory of 1144	2108	RFQ Engine & Piston overhaul,Doc.exe	46
PID 2108 wrote to memory of 1144	2108	RFQ Engine & Piston overhaul,Doc.exe	46
PID 2108 wrote to memory of 1144	2108	RFQ Engine & Piston overhaul,Doc.exe	46
PID 2108 wrote to memory of 1144	2108	RFQ Engine & Piston overhaul,Doc.exe	46

C:\Users\Admin\AppData\Local\Temp\RFQ Engine & Piston overhaul,Doc.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ Engine & Piston overhaul,Doc.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Libraries\rlyzsazB.cmd" "
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Windows\SysWOW64\esentutl.exe
    C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\cmd.exe /d C:\\Users\\Public\\alpha.pif /o
    3⤵
    PID:2680
- - C:\Windows\SysWOW64\esentutl.exe
    C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\ping.exe /d C:\\Users\\Public\\xpha.pif /o
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    PID:2780
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows "
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2752
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows \SysWOW64"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2748
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Users\Public\xpha.pif
      C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2980
- - C:\Windows \SysWOW64\per.exe
    "C:\\Windows \\SysWOW64\\per.exe
    3⤵
    - Executes dropped EXE
    PID:2560
- - C:\Windows \SysWOW64\per.exe
    "C:\Windows \SysWOW64\per.exe"
    3⤵
    - Executes dropped EXE
    PID:2184
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c del "C:\Users\Public\xpha.pif"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2328
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \SysWOW64
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2476
- - C:\Users\Public\alpha.pif
    C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1476
- C:\Windows\SysWOW64\esentutl.exe
  C:\\Windows\\System32\\esentutl.exe /y C:\Users\Admin\AppData\Local\Temp\RFQ Engine & Piston overhaul,Doc.exe /d C:\\Users\\Public\\Libraries\\Bzaszylr.PIF /o
  2⤵
  PID:1660
- C:\Windows\SysWOW64\SndVol.exe
  C:\Windows\System32\SndVol.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1144

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Libraries\rlyzsazB.cmd

Filesize
60KB

MD5
b87f096cbc25570329e2bb59fee57580

SHA1
d281d1bf37b4fb46f90973afc65eece3908532b2

SHA256
d08ccc9b1e3acc205fe754bad8416964e9711815e9ceed5e6af73d8e9035ec9e

SHA512
72901adde38f50cf6d74743c0a546c0fea8b1cd4a18449048a0758a7593a176fc33aad1ebfd955775eefc2b30532bcc18e4f2964b3731b668dd87d94405951f7

Download Submit
C:\Windows \SysWOW64\per.exe

Filesize
94KB

MD5
869640d0a3f838694ab4dfea9e2f544d

SHA1
bdc42b280446ba53624ff23f314aadb861566832

SHA256
0db4d3ffdb96d13cf3b427af8be66d985728c55ae254e4b67d287797e4c0b323

SHA512
6e775cfb350415434b18427d5ff79b930ed3b0b3fc3466bc195a796c95661d4696f2d662dd0e020c3a6c3419c2734468b1d7546712ecec868d2bbfd2bc2468a7

Download Submit
\Users\Public\alpha.pif

Filesize
295KB

MD5
ad7b9c14083b52bc532fba5948342b98

SHA1
ee8cbf12d87c4d388f09b4f69bed2e91682920b5

SHA256
17f746d82695fa9b35493b41859d39d786d32b23a9d2e00f4011dec7a02402ae

SHA512
e12aad20c824187b39edb3c7943709290b5ddbf1b4032988db46f2e86da3cf7e7783f78c82e4dc5da232f666b8f9799a260a1f8e2694eb4d0cdaf78da710fde1

Download Submit
\Users\Public\xpha.pif

Filesize
15KB

MD5
6242e3d67787ccbf4e06ad2982853144

SHA1
6ac7947207d999a65890ab25fe344955da35028e

SHA256
4ca10dba7ff487fdb3f1362a3681d7d929f5aa1262cdfd31b04c30826983fb1d

SHA512
7d0d457e1537d624119a8023bcc086575696a5739c0460ef11554afac13af5e5d1edc7629a10e62834aba9f1b3ab1442011b15b4c3930399d91dca34b3b1cbaf

Download Submit
memory/1144-71-0x0000000002CB0000-0x0000000003CB0000-memory.dmp

Filesize
16.0MB

Download
memory/1144-75-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-87-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-86-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-85-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-72-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-84-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-74-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-76-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-83-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-77-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-81-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-80-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/1144-82-0x0000000029870000-0x00000000298F2000-memory.dmp

Filesize
520KB

Download
memory/2108-4-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/2108-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2108-1-0x00000000031A0000-0x00000000041A0000-memory.dmp

Filesize
16.0MB

Download
memory/2108-2-0x00000000031A0000-0x00000000041A0000-memory.dmp

Filesize
16.0MB

Download
memory/2108-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download