modiloader | e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 02:51

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General

Target

e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe
Size

1.1MB
MD5

7599df9373aef8cd1ad6c7d6f55db324
SHA1

c72884344671f374215fd14b19fcbddaa499e311
SHA256

e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c
SHA512

59ddc889b459172a6af12bf52dec36cfe97bf0c15d4fc59eb8bdcf642efa350299cee7676d5127c329cd7fa58f27e1f9c11314e6cbfaf046959c81a0049a8241
SSDEEP

24576:jkcL46wGlmCQ4dviwbWBFREfuFlFnP06vtSRDZZdI39v5SPfWxtPtnwpZz2MXMGq:jQnrwxf2dsjrMSehaaVt

Score

10^/10

modiloader remcos anyanwu dollar discovery persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

ANYANWU DOLLAR

ezeanyanwu.duckdns.org:1941

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-1PA65J
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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/2116-2-0x0000000003530000-0x0000000004530000-memory.dmp	modiloader_stage2

Executes dropped EXE 9 IoCs

pid	Process
2840	alpha.pif
2740	alpha.pif
2296	alpha.pif
2432	xpha.pif
2600	per.exe
644	per.exe
2996	alpha.pif
1864	alpha.pif
2468	alpha.pif

Loads dropped DLL 4 IoCs

pid	Process
576	cmd.exe
576	cmd.exe
576	cmd.exe
2296	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Sidoowcu = "C:\\Users\\Public\\Sidoowcu.url"	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
2	drive.google.com
4	drive.google.com

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	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.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	alpha.pif
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	colorcpl.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
2820	esentutl.exe

Script User-Agent 2 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)
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 576	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	31
PID 2116 wrote to memory of 576	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	31
PID 2116 wrote to memory of 576	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	31
PID 2116 wrote to memory of 576	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	31
PID 576 wrote to memory of 2800	576	cmd.exe	33
PID 576 wrote to memory of 2800	576	cmd.exe	33
PID 576 wrote to memory of 2800	576	cmd.exe	33
PID 576 wrote to memory of 2800	576	cmd.exe	33
PID 576 wrote to memory of 2820	576	cmd.exe	34
PID 576 wrote to memory of 2820	576	cmd.exe	34
PID 576 wrote to memory of 2820	576	cmd.exe	34
PID 576 wrote to memory of 2820	576	cmd.exe	34
PID 576 wrote to memory of 2840	576	cmd.exe	35
PID 576 wrote to memory of 2840	576	cmd.exe	35
PID 576 wrote to memory of 2840	576	cmd.exe	35
PID 576 wrote to memory of 2840	576	cmd.exe	35
PID 576 wrote to memory of 2740	576	cmd.exe	36
PID 576 wrote to memory of 2740	576	cmd.exe	36
PID 576 wrote to memory of 2740	576	cmd.exe	36
PID 576 wrote to memory of 2740	576	cmd.exe	36
PID 576 wrote to memory of 2296	576	cmd.exe	37
PID 576 wrote to memory of 2296	576	cmd.exe	37
PID 576 wrote to memory of 2296	576	cmd.exe	37
PID 576 wrote to memory of 2296	576	cmd.exe	37
PID 2296 wrote to memory of 2432	2296	alpha.pif	38
PID 2296 wrote to memory of 2432	2296	alpha.pif	38
PID 2296 wrote to memory of 2432	2296	alpha.pif	38
PID 2296 wrote to memory of 2432	2296	alpha.pif	38
PID 576 wrote to memory of 2996	576	cmd.exe	41
PID 576 wrote to memory of 2996	576	cmd.exe	41
PID 576 wrote to memory of 2996	576	cmd.exe	41
PID 576 wrote to memory of 2996	576	cmd.exe	41
PID 576 wrote to memory of 1864	576	cmd.exe	42
PID 576 wrote to memory of 1864	576	cmd.exe	42
PID 576 wrote to memory of 1864	576	cmd.exe	42
PID 576 wrote to memory of 1864	576	cmd.exe	42
PID 576 wrote to memory of 2468	576	cmd.exe	43
PID 576 wrote to memory of 2468	576	cmd.exe	43
PID 576 wrote to memory of 2468	576	cmd.exe	43
PID 576 wrote to memory of 2468	576	cmd.exe	43
PID 2116 wrote to memory of 1312	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	44
PID 2116 wrote to memory of 1312	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	44
PID 2116 wrote to memory of 1312	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	44
PID 2116 wrote to memory of 1312	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	44
PID 2116 wrote to memory of 1856	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	45
PID 2116 wrote to memory of 1856	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	45
PID 2116 wrote to memory of 1856	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	45
PID 2116 wrote to memory of 1856	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	45
PID 2116 wrote to memory of 1856	2116	e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe	45

C:\Users\Admin\AppData\Local\Temp\e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe
"C:\Users\Admin\AppData\Local\Temp\e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Libraries\ucwoodiS.cmd" "
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:576
- - C:\Windows\SysWOW64\esentutl.exe
    C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\cmd.exe /d C:\\Users\\Public\\alpha.pif /o
    3⤵
    PID:2800
- - 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:2820
- - 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:2840
- - 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:2740
- - 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:2296
  - - 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:2432
- - C:\Windows \SysWOW64\per.exe
    "C:\\Windows \\SysWOW64\\per.exe
    3⤵
    - Executes dropped EXE
    PID:2600
- - C:\Windows \SysWOW64\per.exe
    "C:\Windows \SysWOW64\per.exe"
    3⤵
    - Executes dropped EXE
    PID:644
- - 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:2996
- - 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:1864
- - 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:2468
- C:\Windows\SysWOW64\esentutl.exe
  C:\\Windows\\System32\\esentutl.exe /y C:\Users\Admin\AppData\Local\Temp\e055283488d4772c82f8edd60a06cde980e27b735c1b3083908da80b91c5085c.exe /d C:\\Users\\Public\\Libraries\\Sidoowcu.PIF /o
  2⤵
  PID:1312
- C:\Windows\SysWOW64\colorcpl.exe
  C:\Windows\System32\colorcpl.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1856

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
146B

MD5
0b9112a6e115f79a76d4953b22718399

SHA1
6937b768bc97d0b7d58f06f69f3233e1ce283799

SHA256
dae863952c01b6ec306e57f8b749472ccc02c8f299955b394086b612b263ecac

SHA512
7ca90359e2a8a7f5f82d630a9a5ec25ba5ca235b31d82efe66bd27e15e924cbf39293b441f16e96496af710907e8ceaa38002f1303bfa311f83927a12405ec9b

Download Submit
C:\Users\Public\Libraries\ucwoodiS.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/1856-77-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-83-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-109-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-71-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-74-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-75-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-70-0x0000000003240000-0x0000000004240000-memory.dmp

Filesize
16.0MB

Download
memory/1856-107-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-82-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-102-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-101-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-88-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-89-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-95-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/1856-96-0x0000000003170000-0x00000000031EF000-memory.dmp

Filesize
508KB

Download
memory/2116-2-0x0000000003530000-0x0000000004530000-memory.dmp

Filesize
16.0MB

Download
memory/2116-4-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/2116-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2116-1-0x0000000003530000-0x0000000004530000-memory.dmp

Filesize
16.0MB

Download