modiloader | b7285db14a569eccf6e5cca5416478153c38b9b7931f0bdea403901c3632cbc9

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2023, 07:51

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General

Target

Document Required310753577644567865689.exe
Size

1.1MB
MD5

0f1caf9593d310fdb217cb05e62693f9
SHA1

cd3a58a665444ac047aef10e5deefbba65b54e18
SHA256

b7285db14a569eccf6e5cca5416478153c38b9b7931f0bdea403901c3632cbc9
SHA512

985ed0ce05a4ed4eb37630238974f3d487fbe404809229db488ea722a6af115256fe786020ee6bcc6d113186db10fabb22b6b5f4f32f93131db2de2e3807a7f0
SSDEEP

24576:ygaIphuOCwQSQ8eD0jzOt1ytFvDgIFoc5:y2B2DCzOt1ytFvDpFoc

Score

10^/10

modiloader remcos sky-yak persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

SKY-YAK

www.christopherferr.com:2404

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
12345
mouse_option
false
mutex
Rmc-E68T3F
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
behavioral2/memory/4216-132-0x00000000023B0000-0x00000000023DC000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
2104	easinvoker.exe
2884	emxuopoF.pif

Loads dropped DLL 1 IoCs

pid	Process
2104	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fopouxme = "C:\\Users\\Public\\Libraries\\emxuopoF.url"	Document Required310753577644567865689.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2100	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5016	powershell.exe
5016	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	powershell.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 1316	4216	Document Required310753577644567865689.exe	80
PID 4216 wrote to memory of 1316	4216	Document Required310753577644567865689.exe	80
PID 4216 wrote to memory of 1316	4216	Document Required310753577644567865689.exe	80
PID 1316 wrote to memory of 2196	1316	cmd.exe	82
PID 1316 wrote to memory of 2196	1316	cmd.exe	82
PID 1316 wrote to memory of 2196	1316	cmd.exe	82
PID 1316 wrote to memory of 1956	1316	cmd.exe	83
PID 1316 wrote to memory of 1956	1316	cmd.exe	83
PID 1316 wrote to memory of 1956	1316	cmd.exe	83
PID 1316 wrote to memory of 1420	1316	cmd.exe	84
PID 1316 wrote to memory of 1420	1316	cmd.exe	84
PID 1316 wrote to memory of 1420	1316	cmd.exe	84
PID 1316 wrote to memory of 2960	1316	cmd.exe	85
PID 1316 wrote to memory of 2960	1316	cmd.exe	85
PID 1316 wrote to memory of 2960	1316	cmd.exe	85
PID 1316 wrote to memory of 3500	1316	cmd.exe	86
PID 1316 wrote to memory of 3500	1316	cmd.exe	86
PID 1316 wrote to memory of 3500	1316	cmd.exe	86
PID 1316 wrote to memory of 1504	1316	cmd.exe	87
PID 1316 wrote to memory of 1504	1316	cmd.exe	87
PID 1316 wrote to memory of 1504	1316	cmd.exe	87
PID 1316 wrote to memory of 2104	1316	cmd.exe	88
PID 1316 wrote to memory of 2104	1316	cmd.exe	88
PID 2104 wrote to memory of 4916	2104	easinvoker.exe	89
PID 2104 wrote to memory of 4916	2104	easinvoker.exe	89
PID 1316 wrote to memory of 2100	1316	cmd.exe	91
PID 1316 wrote to memory of 2100	1316	cmd.exe	91
PID 1316 wrote to memory of 2100	1316	cmd.exe	91
PID 4916 wrote to memory of 5016	4916	cmd.exe	92
PID 4916 wrote to memory of 5016	4916	cmd.exe	92
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94
PID 4216 wrote to memory of 2884	4216	Document Required310753577644567865689.exe	94

C:\Users\Admin\AppData\Local\Temp\Document Required310753577644567865689.exe
"C:\Users\Admin\AppData\Local\Temp\Document Required310753577644567865689.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\FopouxmeO.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:2196
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:1956
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:1420
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:2960
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:3500
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:1504
- - C:\Windows \System32\easinvoker.exe
    "C:\Windows \System32\easinvoker.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4916
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:5016
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 6
    3⤵
    - Runs ping.exe
    PID:2100
- C:\Users\Public\Libraries\emxuopoF.pif
  C:\Users\Public\Libraries\emxuopoF.pif
  2⤵
  - Executes dropped EXE
  PID:2884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\Libraries\FopouxmeO.bat

Filesize
411B

MD5
55aba243e88f6a6813c117ffe1fa5979

SHA1
210b9b028a4b798c837a182321dbf2e50d112816

SHA256
5a11c5641c476891aa30e7ecfa57c2639f6827d8640061f73e9afec0adbbd7d2

SHA512
68009c4c9bbea75a3bfa9f79945d30957a95691ea405d031b4ca7f1cb47504bbc768fcae59173885743ad4d6cfdd2313c3fe0acb515e34e5c809ecdc7f45e307

Download Submit
C:\Users\Public\Libraries\KDECO.bat

Filesize
155B

MD5
213c60adf1c9ef88dc3c9b2d579959d2

SHA1
e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021

SHA256
37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e

SHA512
fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7

Download Submit
C:\Users\Public\Libraries\easinvoker.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Users\Public\Libraries\emxuopoF.pif

Filesize
118KB

MD5
6035096bf8f5f72d46a8ade5586a0c7b

SHA1
2a821cf6889377435b2028016d72efe3bb8fb8da

SHA256
9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af

SHA512
83319b115b62d377b349f954d367860eec63ba51cd6ac4c7a51d887734fffed1045c64fc6f5c8552a038524c71e9a7e52f48374d28f02e828563e11456e93175

Download Submit
C:\Users\Public\Libraries\emxuopoF.pif

Filesize
118KB

MD5
6035096bf8f5f72d46a8ade5586a0c7b

SHA1
2a821cf6889377435b2028016d72efe3bb8fb8da

SHA256
9a38991461288014473dd1d6de00238a69d14ff36bc5a555ac4d88479da1e0af

SHA512
83319b115b62d377b349f954d367860eec63ba51cd6ac4c7a51d887734fffed1045c64fc6f5c8552a038524c71e9a7e52f48374d28f02e828563e11456e93175

Download Submit
C:\Users\Public\Libraries\netutils.dll

Filesize
109KB

MD5
08aecbf3114e569921df32fb5c8a1dd6

SHA1
9e2fd6ba9b66844292fb49a79fc874ad52f5ecba

SHA256
7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2

SHA512
e1895567460a4945690e4d88ada31a41ae7d499eb887108578027cde5aaaa2cfc28779a00fc66d01e49c3e4354caada18a14d61b57fbec40b38de23fd1c91d57

Download Submit
C:\Windows \System32\easinvoker.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\easinvoker.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\netutils.dll

Filesize
109KB

MD5
08aecbf3114e569921df32fb5c8a1dd6

SHA1
9e2fd6ba9b66844292fb49a79fc874ad52f5ecba

SHA256
7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2

SHA512
e1895567460a4945690e4d88ada31a41ae7d499eb887108578027cde5aaaa2cfc28779a00fc66d01e49c3e4354caada18a14d61b57fbec40b38de23fd1c91d57

Download Submit
C:\Windows \System32\netutils.dll

Filesize
109KB

MD5
08aecbf3114e569921df32fb5c8a1dd6

SHA1
9e2fd6ba9b66844292fb49a79fc874ad52f5ecba

SHA256
7c1a178a5629027a0bb19c743e8505b280a5b6dc22088cd1a6a0132e32d79fc2

SHA512
e1895567460a4945690e4d88ada31a41ae7d499eb887108578027cde5aaaa2cfc28779a00fc66d01e49c3e4354caada18a14d61b57fbec40b38de23fd1c91d57

Download Submit
C:\windows \system32\KDECO.bat

Filesize
155B

MD5
213c60adf1c9ef88dc3c9b2d579959d2

SHA1
e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021

SHA256
37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e

SHA512
fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7

Download Submit
memory/2884-161-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/2884-163-0x0000000000640000-0x00000000006BF000-memory.dmp

Filesize
508KB

Download
memory/2884-162-0x0000000000640000-0x00000000006BF000-memory.dmp

Filesize
508KB

Download
memory/4216-156-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/4216-160-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/4216-132-0x00000000023B0000-0x00000000023DC000-memory.dmp

Filesize
176KB

Download
memory/5016-155-0x00007FFF53BE0000-0x00007FFF546A1000-memory.dmp

Filesize
10.8MB

Download
memory/5016-154-0x0000017AEB890000-0x0000017AEB8B2000-memory.dmp

Filesize
136KB

Download