formbook | eea29ccf59fa6a6aa5a3c14360db6068144f14601d987ec37ea21a35cdac9430

Analysis

max time kernel
153s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
10-02-2023 10:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

E-dekont.pdf.exe
Size

266KB
MD5

fbbdef7b1be694b9913a9e6e91681847
SHA1

e81a9326b40b5d23b249ce018f3038172eeea087
SHA256

eea29ccf59fa6a6aa5a3c14360db6068144f14601d987ec37ea21a35cdac9430
SHA512

53613b4b7be5db5f0ae1d8ae744a46cbd2ae87838bae9f39381a2a120abfdcd0ebafad41859d5808a1cb786befd35c1af27a6f3e6308187c8841ffd408d9fded
SSDEEP

6144:vYa6rCjol7mXbdsH7sXM5CErVGf0xWdEkw5U+mWINbles4lmA1C0Vl3qIhOP:vYB3lKdsH7Xj+vhF5N4R1PnW

Score

10^/10

formbook me29 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

me29

Decoy

borne-selfie-valence.com

erccore.com

fontebono.com

58619.se

smartmetersystems.co.uk

defrag.team

az-architecture.com

healingthehoard.com

eqde.ru

kingsedubd.com

hoibeebu.net

findbesthomesolution.com

dinkdfw.com

alfa-outlet.com

claritybiometrics.video

lewshopok.cfd

crofton77.online

assetzstat.info

indianhillsequine.com

vetsclosetomylocation.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
behavioral2/memory/4960-139-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4960-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2200-146-0x0000000001270000-0x000000000129F000-memory.dmp	formbook
behavioral2/memory/2200-152-0x0000000001270000-0x000000000129F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
1876	kbelhfem.exe
4960	kbelhfem.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1876 set thread context of 4960	1876	kbelhfem.exe	81
PID 4960 set thread context of 2684	4960	kbelhfem.exe	56
PID 2200 set thread context of 2684	2200	mstsc.exe	56

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
4960	kbelhfem.exe
4960	kbelhfem.exe
4960	kbelhfem.exe
4960	kbelhfem.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe
2200	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1876	kbelhfem.exe
4960	kbelhfem.exe
4960	kbelhfem.exe
4960	kbelhfem.exe
2200	mstsc.exe
2200	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	kbelhfem.exe
Token: SeDebugPrivilege	2200	mstsc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 1876	4072	E-dekont.pdf.exe	79
PID 4072 wrote to memory of 1876	4072	E-dekont.pdf.exe	79
PID 4072 wrote to memory of 1876	4072	E-dekont.pdf.exe	79
PID 1876 wrote to memory of 4960	1876	kbelhfem.exe	81
PID 1876 wrote to memory of 4960	1876	kbelhfem.exe	81
PID 1876 wrote to memory of 4960	1876	kbelhfem.exe	81
PID 1876 wrote to memory of 4960	1876	kbelhfem.exe	81
PID 2684 wrote to memory of 2200	2684	Explorer.EXE	82
PID 2684 wrote to memory of 2200	2684	Explorer.EXE	82
PID 2684 wrote to memory of 2200	2684	Explorer.EXE	82
PID 2200 wrote to memory of 4080	2200	mstsc.exe	83
PID 2200 wrote to memory of 4080	2200	mstsc.exe	83
PID 2200 wrote to memory of 4080	2200	mstsc.exe	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\E-dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\E-dekont.pdf.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4072
- - C:\Users\Admin\AppData\Local\Temp\kbelhfem.exe
    "C:\Users\Admin\AppData\Local\Temp\kbelhfem.exe" C:\Users\Admin\AppData\Local\Temp\hvcxoiprr.iw
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1876
  - - C:\Users\Admin\AppData\Local\Temp\kbelhfem.exe
      "C:\Users\Admin\AppData\Local\Temp\kbelhfem.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4960
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\kbelhfem.exe"
    3⤵
    PID:4080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\fnapkdxj.w

Filesize
205KB

MD5
226dc80ceb00b90d6adbb2f2da52f3eb

SHA1
daffcca2acd30a7864cb3d4e05198121a1ca1418

SHA256
e55ae09e59c5eb86d6db73308ef3134b346cf7954a17db1ed49bffa1da714962

SHA512
3a70a5734b72f666d7aa7d8ac449c65ee4a903edda486a3dd0bdc6235944cd237cefbabfc0817694fbffebba1ea01e75b2530765e1ce19729a971382ec4dbd48

Download Submit
C:\Users\Admin\AppData\Local\Temp\hvcxoiprr.iw

Filesize
5KB

MD5
b2b83721d58addd770932eef88c22daa

SHA1
644099fa2e7e64f7f3d30f425bc73d11d8892622

SHA256
44c9382a88cc124ca3543d0344733bca34445894f28ae032acae54e81d30dd97

SHA512
a0cab248737e7fd6db5ebc8ff804e1f59f27d10c779ad6bcf6bc45ae54a652dda3f4eab5b6e42fa1c15ced1b7220c91a079023f33c0729e6e03181e2d2f9fd53

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

Filesize
63KB

MD5
05672db6a9fc4e8594bf3f4aefedaa2b

SHA1
c4b83ff5b9e076793422e1cab77d58a9c41faeca

SHA256
687fb4cf29fea51d6192be6492ddaded88a83f3722df92214478fe8627c4da73

SHA512
7735070f57c539f9c78a44f1b1735b46ac1f8ef0ad0ab961ab9b72b1537a62e9919f8cf8ac648a0eab9cadaf20645a717d52b67acc5bf7570a041136cbb19f17

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

Filesize
63KB

MD5
05672db6a9fc4e8594bf3f4aefedaa2b

SHA1
c4b83ff5b9e076793422e1cab77d58a9c41faeca

SHA256
687fb4cf29fea51d6192be6492ddaded88a83f3722df92214478fe8627c4da73

SHA512
7735070f57c539f9c78a44f1b1735b46ac1f8ef0ad0ab961ab9b72b1537a62e9919f8cf8ac648a0eab9cadaf20645a717d52b67acc5bf7570a041136cbb19f17

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

Filesize
63KB

MD5
05672db6a9fc4e8594bf3f4aefedaa2b

SHA1
c4b83ff5b9e076793422e1cab77d58a9c41faeca

SHA256
687fb4cf29fea51d6192be6492ddaded88a83f3722df92214478fe8627c4da73

SHA512
7735070f57c539f9c78a44f1b1735b46ac1f8ef0ad0ab961ab9b72b1537a62e9919f8cf8ac648a0eab9cadaf20645a717d52b67acc5bf7570a041136cbb19f17

Download Submit
memory/2200-146-0x0000000001270000-0x000000000129F000-memory.dmp

Filesize
188KB

Download
memory/2200-152-0x0000000001270000-0x000000000129F000-memory.dmp

Filesize
188KB

Download
memory/2200-148-0x0000000003180000-0x00000000034CA000-memory.dmp

Filesize
3.3MB

Download
memory/2200-150-0x0000000003020000-0x00000000030B3000-memory.dmp

Filesize
588KB

Download
memory/2200-145-0x0000000000170000-0x00000000002AA000-memory.dmp

Filesize
1.2MB

Download
memory/2684-151-0x0000000007950000-0x0000000007A4A000-memory.dmp

Filesize
1000KB

Download
memory/2684-149-0x00000000077C0000-0x0000000007942000-memory.dmp

Filesize
1.5MB

Download
memory/2684-142-0x00000000077C0000-0x0000000007942000-memory.dmp

Filesize
1.5MB

Download
memory/2684-153-0x0000000007950000-0x0000000007A4A000-memory.dmp

Filesize
1000KB

Download
memory/4960-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4960-141-0x00000000006D0000-0x00000000006E4000-memory.dmp

Filesize
80KB

Download
memory/4960-140-0x0000000000B60000-0x0000000000EAA000-memory.dmp

Filesize
3.3MB

Download
memory/4960-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download