formbook | c1d948fee0541e31cfa3affa9d99a6ad6cf287601f3ddae9238c3ca379a4686c

Analysis

max time kernel
151s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
05-05-2023 14:14

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General

Target

Payment (2).exe
Size

957KB
MD5

2ebf7f5b65c0e71bf0f36e8e9bbde1c3
SHA1

94f3d18e57d6483c03cae67478bb559a2e3ae0f8
SHA256

c1d948fee0541e31cfa3affa9d99a6ad6cf287601f3ddae9238c3ca379a4686c
SHA512

e5ff1f5b652b2f16f225bf465bbee6340560d75b7e5e8460afab86db23ec1989faa9f5fe1f182c047ba7a9dcbfcd7a299fa3b0103786f279b48bc20d1100b59b
SSDEEP

12288:0nONo4ehvLMuotC0NgicDPP2sBJ79D67KI04YCE+PhcimEwz8dQNHTcFpI2qjS:0nOPeFGhgicDnDRZBCEMcihwId+jT

Score

10^/10

formbook modiloader bs92 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bs92

Decoy

czwjss.top

delightpgener.top

jannicebnaturotherapies.com

emotionalsupportpandas.com

hotbrasil.shop

abc3k.com

dklending.com

dyxs30.com

474lakeshore4110.info

hdriole.xyz

comicswithaudio.com

hotmeetingsfree.club

albinadolova.ru

agrijan.com

dylane-cv.com

htctuan.com

jacketnorway.com

equora.ru

cloud11.store

olalekanadmin.africa

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4820-185-0x0000000010410000-0x000000001043F000-memory.dmp	formbook
behavioral2/memory/3944-195-0x0000000010410000-0x000000001043F000-memory.dmp	formbook
behavioral2/memory/5100-197-0x00000000010F0000-0x000000000111F000-memory.dmp	formbook
behavioral2/memory/5100-199-0x00000000010F0000-0x000000000111F000-memory.dmp	formbook

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4820-134-0x0000000000720000-0x000000000074C000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Payment (2).exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	Payment (2).exe

Executes dropped EXE 1 IoCs

Processes:

easinvoker.exe

pid process

2588 easinvoker.exe
Loads dropped DLL 1 IoCs

Processes:

easinvoker.exe

pid process

2588 easinvoker.exe

pid	process
2588	easinvoker.exe

pid	process
2588	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Payment (2).exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dkpcyzkl = "C:\\Users\\Public\\Libraries\\lkzycpkD.url"	Payment (2).exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

iexpress.exewlanext.exe

description	pid	process	target process
PID 3944 set thread context of 3124	3944	iexpress.exe	Explorer.EXE
PID 5100 set thread context of 3124	5100	wlanext.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

xcopy.exexcopy.exexcopy.exe

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

Processes:

PING.EXE

pid process

3684 PING.EXE

pid	process
3684	PING.EXE

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

powershell.exePayment (2).exeiexpress.exewlanext.exe

pid	process
1392	powershell.exe
1392	powershell.exe
4820	Payment (2).exe
4820	Payment (2).exe
3944	iexpress.exe
3944	iexpress.exe
3944	iexpress.exe
3944	iexpress.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe
5100	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3124 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

iexpress.exewlanext.exe

pid process

3944 iexpress.exe
3944 iexpress.exe
3944 iexpress.exe
5100 wlanext.exe
5100 wlanext.exe

pid	process
3124	Explorer.EXE

pid	process
3944	iexpress.exe
3944	iexpress.exe
3944	iexpress.exe
5100	wlanext.exe
5100	wlanext.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

powershell.exeiexpress.exeExplorer.EXEwlanext.exe

description	pid	process
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeDebugPrivilege	3944	iexpress.exe
Token: SeShutdownPrivilege	3124	Explorer.EXE
Token: SeCreatePagefilePrivilege	3124	Explorer.EXE
Token: SeShutdownPrivilege	3124	Explorer.EXE
Token: SeCreatePagefilePrivilege	3124	Explorer.EXE
Token: SeDebugPrivilege	5100	wlanext.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

Payment (2).execmd.exeeasinvoker.execmd.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 4820 wrote to memory of 2188	4820	Payment (2).exe	cmd.exe
PID 4820 wrote to memory of 2188	4820	Payment (2).exe	cmd.exe
PID 4820 wrote to memory of 2188	4820	Payment (2).exe	cmd.exe
PID 2188 wrote to memory of 3612	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 3612	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 3612	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 3728	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 3728	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 3728	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 856	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 856	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 856	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 3380	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 3380	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 3380	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 4556	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 4556	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 4556	2188	cmd.exe	cmd.exe
PID 2188 wrote to memory of 940	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 940	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 940	2188	cmd.exe	xcopy.exe
PID 2188 wrote to memory of 2588	2188	cmd.exe	easinvoker.exe
PID 2188 wrote to memory of 2588	2188	cmd.exe	easinvoker.exe
PID 2588 wrote to memory of 1968	2588	easinvoker.exe	cmd.exe
PID 2588 wrote to memory of 1968	2588	easinvoker.exe	cmd.exe
PID 2188 wrote to memory of 3684	2188	cmd.exe	PING.EXE
PID 2188 wrote to memory of 3684	2188	cmd.exe	PING.EXE
PID 2188 wrote to memory of 3684	2188	cmd.exe	PING.EXE
PID 1968 wrote to memory of 1392	1968	cmd.exe	powershell.exe
PID 1968 wrote to memory of 1392	1968	cmd.exe	powershell.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 4820 wrote to memory of 3944	4820	Payment (2).exe	iexpress.exe
PID 3124 wrote to memory of 5100	3124	Explorer.EXE	wlanext.exe
PID 3124 wrote to memory of 5100	3124	Explorer.EXE	wlanext.exe
PID 3124 wrote to memory of 5100	3124	Explorer.EXE	wlanext.exe
PID 5100 wrote to memory of 3744	5100	wlanext.exe	cmd.exe
PID 5100 wrote to memory of 3744	5100	wlanext.exe	cmd.exe
PID 5100 wrote to memory of 3744	5100	wlanext.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Users\Admin\AppData\Local\Temp\Payment (2).exe
  "C:\Users\Admin\AppData\Local\Temp\Payment (2).exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4820
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\DkpcyzklO.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
      4⤵
      PID:3612
  - - C:\Windows\SysWOW64\xcopy.exe
      xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
      4⤵
      Enumerates system info in registry
      PID:3728
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
      4⤵
      PID:856
  - - C:\Windows\SysWOW64\xcopy.exe
      xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
      4⤵
      Enumerates system info in registry
      PID:3380
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
      4⤵
      PID:4556
  - - C:\Windows\SysWOW64\xcopy.exe
      xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
      4⤵
      Enumerates system info in registry
      PID:940
  - - C:\Windows \System32\easinvoker.exe
      "C:\Windows \System32\easinvoker.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2588
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1968
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1392
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 6
      4⤵
      Runs ping.exe
      PID:3684
- - C:\Windows\SysWOW64\iexpress.exe
    "C:\Windows\System32\iexpress.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3944
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5100
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\iexpress.exe"
    3⤵
    PID:3744

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ukp1donx.bqg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
108KB

MD5
3909f5a6bf09d6fa8d29d69e25fa72f0

SHA1
62f48eb34a8eb4c7e733b8faf9086dc04402b19d

SHA256
18d5d6a74199cdff8dab23407dd1a201998b48a780ff621b80bd6066865eb692

SHA512
a13cf9281a3d447a8dd03bc3134a7a4edd2ddcf2d0a3218d8807a41c3627e476dc62e97ebbf97f75f15940662ea2d5a80cb33344507e5b7d743d1799a6bbbcc9

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
108KB

MD5
3909f5a6bf09d6fa8d29d69e25fa72f0

SHA1
62f48eb34a8eb4c7e733b8faf9086dc04402b19d

SHA256
18d5d6a74199cdff8dab23407dd1a201998b48a780ff621b80bd6066865eb692

SHA512
a13cf9281a3d447a8dd03bc3134a7a4edd2ddcf2d0a3218d8807a41c3627e476dc62e97ebbf97f75f15940662ea2d5a80cb33344507e5b7d743d1799a6bbbcc9

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

Filesize
108KB

MD5
3909f5a6bf09d6fa8d29d69e25fa72f0

SHA1
62f48eb34a8eb4c7e733b8faf9086dc04402b19d

SHA256
18d5d6a74199cdff8dab23407dd1a201998b48a780ff621b80bd6066865eb692

SHA512
a13cf9281a3d447a8dd03bc3134a7a4edd2ddcf2d0a3218d8807a41c3627e476dc62e97ebbf97f75f15940662ea2d5a80cb33344507e5b7d743d1799a6bbbcc9

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

Filesize
155B

MD5
213c60adf1c9ef88dc3c9b2d579959d2

SHA1
e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021

SHA256
37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e

SHA512
fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7

Download Submit
memory/1392-180-0x000001C39AC30000-0x000001C39AC52000-memory.dmp

Filesize
136KB

Download
memory/2588-166-0x00000000613C0000-0x00000000613E2000-memory.dmp

Filesize
136KB

Download
memory/3124-202-0x0000000009190000-0x0000000009255000-memory.dmp

Filesize
788KB

Download
memory/3124-203-0x0000000009190000-0x0000000009255000-memory.dmp

Filesize
788KB

Download
memory/3124-191-0x0000000009270000-0x0000000009361000-memory.dmp

Filesize
964KB

Download
memory/3124-205-0x0000000009190000-0x0000000009255000-memory.dmp

Filesize
788KB

Download
memory/3944-195-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download
memory/3944-190-0x00000000040D0000-0x00000000040E4000-memory.dmp

Filesize
80KB

Download
memory/3944-186-0x0000000002D60000-0x0000000002D61000-memory.dmp

Filesize
4KB

Download
memory/3944-189-0x00000000041B0000-0x00000000044FA000-memory.dmp

Filesize
3.3MB

Download
memory/4820-184-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download
memory/4820-185-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download
memory/4820-133-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/4820-137-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/4820-136-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/4820-134-0x0000000000720000-0x000000000074C000-memory.dmp

Filesize
176KB

Download
memory/5100-192-0x0000000000D30000-0x0000000000D47000-memory.dmp

Filesize
92KB

Download
memory/5100-196-0x0000000000D30000-0x0000000000D47000-memory.dmp

Filesize
92KB

Download
memory/5100-197-0x00000000010F0000-0x000000000111F000-memory.dmp

Filesize
188KB

Download
memory/5100-198-0x00000000017D0000-0x0000000001B1A000-memory.dmp

Filesize
3.3MB

Download
memory/5100-199-0x00000000010F0000-0x000000000111F000-memory.dmp

Filesize
188KB

Download
memory/5100-201-0x0000000001640000-0x00000000016D3000-memory.dmp

Filesize
588KB

Download