formbook | c0a4c73ac3739d0be9f611a8227800b9b9f19a9bd06b5a82d9007cc5e54a430c

Analysis

max time kernel
149s
max time network
140s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
15/08/2023, 06:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

PO 0049 & 0050.xls
Size

1.3MB
MD5

35d4ccea11ed9d1e96ef88328ff609ed
SHA1

8580de4fc69b1e89c2b2fdde2ecc8ee688d33aa0
SHA256

c0a4c73ac3739d0be9f611a8227800b9b9f19a9bd06b5a82d9007cc5e54a430c
SHA512

edc7352f76d2def45551d96cf028e7a11f00236e8aca86feb2f29f7b45fcd492e7192dcddceb3fd477f334d2e60b1043179ac5d4bc9f0241c0d40b5fd2dc162b
SSDEEP

24576:3aZy0w6VgjKaWlEzp7aoZydw6VjjKaWlEzp7aczd6f/b7QAUQp5E/zwkx:3E86VgjKjOzdJ6VjjKjOzJdU7/UX/z7

Score

10^/10

formbook sy22 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sy22

Decoy

vinteligencia.com

displayfridges.fun

completetip.com

giallozafferrano.com

jizihao1.com

mysticheightstrail.com

fourseasonslb.com

kjnala.shop

mosiacwall.com

vandistreet.com

gracefullytouchedartistry.com

hbiwhwr.shop

mfmz.net

hrmbrillianz.com

funwarsztat.com

polewithcandy.com

ourrajasthan.com

wilhouettteamerica.com

johnnystintshop.com

asgnelwin.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1460-96-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1460-101-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2940-106-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2940-108-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	2896	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2740	dasHost.exe
1460	dasHost.exe

Loads dropped DLL 6 IoCs

pid	Process
2896	EQNEDT32.EXE
2896	EQNEDT32.EXE
2896	EQNEDT32.EXE
2896	EQNEDT32.EXE
2896	EQNEDT32.EXE
2740	dasHost.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 1460	2740	dasHost.exe	33
PID 1460 set thread context of 1196	1460	dasHost.exe	11
PID 2940 set thread context of 1196	2940	svchost.exe	11

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2896	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2828	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1460	dasHost.exe
1460	dasHost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe
2940	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1196	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1460	dasHost.exe
1460	dasHost.exe
1460	dasHost.exe
2940	svchost.exe
2940	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	dasHost.exe
Token: SeDebugPrivilege	2940	svchost.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2828	EXCEL.EXE
2828	EXCEL.EXE
2828	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2740	2896	EQNEDT32.EXE	29
PID 2896 wrote to memory of 2740	2896	EQNEDT32.EXE	29
PID 2896 wrote to memory of 2740	2896	EQNEDT32.EXE	29
PID 2896 wrote to memory of 2740	2896	EQNEDT32.EXE	29
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 2740 wrote to memory of 1460	2740	dasHost.exe	33
PID 1196 wrote to memory of 2940	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2940	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2940	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2940	1196	Explorer.EXE	34
PID 2940 wrote to memory of 1536	2940	svchost.exe	35
PID 2940 wrote to memory of 1536	2940	svchost.exe	35
PID 2940 wrote to memory of 1536	2940	svchost.exe	35
PID 2940 wrote to memory of 1536	2940	svchost.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\PO 0049 & 0050.xls"
  2⤵
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:2828
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\dasHost.exe"
    3⤵
    PID:1536

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\dasHost.exe
  "C:\Users\Admin\AppData\Local\Temp\dasHost.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Users\Admin\AppData\Local\Temp\dasHost.exe
    "C:\Users\Admin\AppData\Local\Temp\dasHost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\2ECAE6B8.emf

Filesize
1.4MB

MD5
a01b9617553432807b9b58025b338d97

SHA1
439bdcc450408b9735b2428c2d53d2e6977fa58c

SHA256
7a0426ed2e2349916969ff7087c0f76089fb8ce7f4627f3d11ccbc1aaefcedce

SHA512
312cc2563fa865d6a939fea85a520627c73ed9a95bafc98c89495f21d535dc658825be74b64f0f5c5815d1d234fc6e77a71779247e4973e39ba8dccec2f09bee

Download Submit
C:\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
\Users\Admin\AppData\Local\Temp\dasHost.exe

Filesize
537KB

MD5
95571a298ef4d99dcddfa704ad8d6ffe

SHA1
9129035adf05ce647285af4c89af5e4d9779ad59

SHA256
64e35a2e1b03234d3cfc33d6ea3b23cdf45be5fb39f2650b797128b967559717

SHA512
c01c660acba9ca2921f44df8ed769e9e2cb3c772c4164f59cf216fb4a0e6e66163639d2f7bcca6d51b73cd247da8aa9a9b990014022fb271f05423414093a7b1

Download Submit
memory/1196-116-0x0000000009630000-0x0000000009799000-memory.dmp

Filesize
1.4MB

Download
memory/1196-113-0x0000000009630000-0x0000000009799000-memory.dmp

Filesize
1.4MB

Download
memory/1196-103-0x00000000074B0000-0x00000000075FC000-memory.dmp

Filesize
1.3MB

Download
memory/1196-114-0x0000000009630000-0x0000000009799000-memory.dmp

Filesize
1.4MB

Download
memory/1460-102-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/1460-101-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1460-99-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1460-96-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1460-94-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1460-92-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1460-93-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2740-82-0x0000000000120000-0x00000000001AC000-memory.dmp

Filesize
560KB

Download
memory/2740-85-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download
memory/2740-89-0x0000000000700000-0x000000000070E000-memory.dmp

Filesize
56KB

Download
memory/2740-98-0x000000006C030000-0x000000006C71E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-88-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download
memory/2740-87-0x000000006C030000-0x000000006C71E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-83-0x000000006C030000-0x000000006C71E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-84-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download
memory/2740-90-0x00000000050F0000-0x000000000515E000-memory.dmp

Filesize
440KB

Download
memory/2828-135-0x0000000073A0D000-0x0000000073A18000-memory.dmp

Filesize
44KB

Download
memory/2828-124-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2828-55-0x0000000073A0D000-0x0000000073A18000-memory.dmp

Filesize
44KB

Download
memory/2828-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2828-86-0x0000000073A0D000-0x0000000073A18000-memory.dmp

Filesize
44KB

Download
memory/2940-105-0x00000000000F0000-0x00000000000F8000-memory.dmp

Filesize
32KB

Download
memory/2940-110-0x0000000000630000-0x00000000006C3000-memory.dmp

Filesize
588KB

Download
memory/2940-108-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2940-107-0x0000000000810000-0x0000000000B13000-memory.dmp

Filesize
3.0MB

Download
memory/2940-106-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2940-104-0x00000000000F0000-0x00000000000F8000-memory.dmp

Filesize
32KB

Download