formbook | 8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8

Analysis

max time kernel
162s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2023 00:02

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General

Target

8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe
Size

330KB
MD5

847c4cd760ad16321f9ec78b672e81da
SHA1

b0e07be4c8c4eb5996cf640a170485ef5268b027
SHA256

8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8
SHA512

835bf6c1e490756fc6802271d2bab047b0b322b65b7fd5a5260acb728fc54771f9298fde205304ea13ecadcf561c15d1af116085d8d80160bb323b9653384644
SSDEEP

6144:vYa63g64a5n8qTnqjbZVTPeB2iAdZS+CiBttk7HtH/oLx4iBUhez:vY5g64a5ntnqHX22KiB0fG4mP

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 5 IoCs

rat

resource	yara_rule
behavioral2/memory/428-7-0x00000000007A0000-0x00000000007CF000-memory.dmp	formbook
behavioral2/memory/428-13-0x00000000007A0000-0x00000000007CF000-memory.dmp	formbook
behavioral2/memory/4596-18-0x00000000012E0000-0x000000000130F000-memory.dmp	formbook
behavioral2/memory/4596-22-0x00000000012E0000-0x000000000130F000-memory.dmp	formbook
behavioral2/memory/4596-23-0x00000000012E0000-0x000000000130F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
4244	jkaeg.exe
428	jkaeg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4244 set thread context of 428	4244	jkaeg.exe	88
PID 428 set thread context of 3308	428	jkaeg.exe	36
PID 4596 set thread context of 3308	4596	NETSTAT.EXE	36

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

System Information Discovery
T1082

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4596	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 54 IoCs

pid	Process
428	jkaeg.exe
428	jkaeg.exe
428	jkaeg.exe
428	jkaeg.exe
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE
4596	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3308	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4244	jkaeg.exe
4244	jkaeg.exe
428	jkaeg.exe
428	jkaeg.exe
428	jkaeg.exe
4596	NETSTAT.EXE
4596	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	428	jkaeg.exe
Token: SeDebugPrivilege	4596	NETSTAT.EXE
Token: SeShutdownPrivilege	3308	Explorer.EXE
Token: SeCreatePagefilePrivilege	3308	Explorer.EXE
Token: SeShutdownPrivilege	3308	Explorer.EXE
Token: SeCreatePagefilePrivilege	3308	Explorer.EXE
Token: SeShutdownPrivilege	3308	Explorer.EXE
Token: SeCreatePagefilePrivilege	3308	Explorer.EXE
Token: SeShutdownPrivilege	3308	Explorer.EXE
Token: SeCreatePagefilePrivilege	3308	Explorer.EXE
Token: SeShutdownPrivilege	3308	Explorer.EXE
Token: SeCreatePagefilePrivilege	3308	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3308	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 4244	1988	8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe	87
PID 1988 wrote to memory of 4244	1988	8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe	87
PID 1988 wrote to memory of 4244	1988	8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe	87
PID 4244 wrote to memory of 428	4244	jkaeg.exe	88
PID 4244 wrote to memory of 428	4244	jkaeg.exe	88
PID 4244 wrote to memory of 428	4244	jkaeg.exe	88
PID 4244 wrote to memory of 428	4244	jkaeg.exe	88
PID 3308 wrote to memory of 4596	3308	Explorer.EXE	90
PID 3308 wrote to memory of 4596	3308	Explorer.EXE	90
PID 3308 wrote to memory of 4596	3308	Explorer.EXE	90
PID 4596 wrote to memory of 2016	4596	NETSTAT.EXE	92
PID 4596 wrote to memory of 2016	4596	NETSTAT.EXE	92
PID 4596 wrote to memory of 2016	4596	NETSTAT.EXE	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3308
- C:\Users\Admin\AppData\Local\Temp\8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe
  "C:\Users\Admin\AppData\Local\Temp\8b57c28d168dbb2d1f1a7520c4331c657ba9970be6eba72a552b58ad3519e0e8.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Users\Admin\AppData\Local\Temp\jkaeg.exe
    "C:\Users\Admin\AppData\Local\Temp\jkaeg.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4244
  - - C:\Users\Admin\AppData\Local\Temp\jkaeg.exe
      "C:\Users\Admin\AppData\Local\Temp\jkaeg.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:428
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\jkaeg.exe"
    3⤵
    PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\jkaeg.exe

Filesize
200KB

MD5
06ddb8dafba1b7be97e46a02c1d53dd5

SHA1
53b6374d3785a69eb168d580b5a0cbf1d89464c7

SHA256
725ca897476b8c158b5401da8a1bbb9cb65919dfe288b156189e8917cb9845c5

SHA512
f78ade82990fd7d856fe65a319d7658ec8f128065428328a0ca61ec12a4305ddf96093dbf0d33edb7aced47db98febf808288f7a67e1b26430dcbacc304880de

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

Filesize
200KB

MD5
06ddb8dafba1b7be97e46a02c1d53dd5

SHA1
53b6374d3785a69eb168d580b5a0cbf1d89464c7

SHA256
725ca897476b8c158b5401da8a1bbb9cb65919dfe288b156189e8917cb9845c5

SHA512
f78ade82990fd7d856fe65a319d7658ec8f128065428328a0ca61ec12a4305ddf96093dbf0d33edb7aced47db98febf808288f7a67e1b26430dcbacc304880de

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

Filesize
200KB

MD5
06ddb8dafba1b7be97e46a02c1d53dd5

SHA1
53b6374d3785a69eb168d580b5a0cbf1d89464c7

SHA256
725ca897476b8c158b5401da8a1bbb9cb65919dfe288b156189e8917cb9845c5

SHA512
f78ade82990fd7d856fe65a319d7658ec8f128065428328a0ca61ec12a4305ddf96093dbf0d33edb7aced47db98febf808288f7a67e1b26430dcbacc304880de

Download Submit
C:\Users\Admin\AppData\Local\Temp\qowtukldrzg.tb

Filesize
205KB

MD5
aa42059717645951bdeba3fa472e5240

SHA1
c838b76f3b424ebac57d0616067bbfc44ff6c23b

SHA256
4b155e27b98898a933495c48697d0f800e9c7e4be888a3e6f4bd42efd652f917

SHA512
621fe855fd6327249b65bedf1627b23e459d47c3bc5881c89717ac1015dcb064bf3f218110efd0d94dd4d0d584b52e407722c79192c5cddca7bb6ac6c4a95b75

Download Submit
memory/428-7-0x00000000007A0000-0x00000000007CF000-memory.dmp

Filesize
188KB

Download
memory/428-12-0x0000000000EA0000-0x00000000011EA000-memory.dmp

Filesize
3.3MB

Download
memory/428-13-0x00000000007A0000-0x00000000007CF000-memory.dmp

Filesize
188KB

Download
memory/428-14-0x0000000000E10000-0x0000000000E24000-memory.dmp

Filesize
80KB

Download
memory/3308-59-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-75-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-26-0x0000000009110000-0x0000000009255000-memory.dmp

Filesize
1.3MB

Download
memory/3308-27-0x0000000009110000-0x0000000009255000-memory.dmp

Filesize
1.3MB

Download
memory/3308-110-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-64-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-63-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-109-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-106-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-104-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-29-0x0000000009110000-0x0000000009255000-memory.dmp

Filesize
1.3MB

Download
memory/3308-34-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-33-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-35-0x00000000033C0000-0x00000000033D0000-memory.dmp

Filesize
64KB

Download
memory/3308-36-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-37-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-38-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-39-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-40-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-41-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-42-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-45-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-44-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-46-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/3308-47-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-50-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-52-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-51-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/3308-56-0x00000000033C0000-0x00000000033D0000-memory.dmp

Filesize
64KB

Download
memory/3308-55-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-54-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-58-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-15-0x0000000008F60000-0x000000000910A000-memory.dmp

Filesize
1.7MB

Download
memory/3308-60-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/3308-61-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-62-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-105-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-107-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-20-0x0000000008F60000-0x000000000910A000-memory.dmp

Filesize
1.7MB

Download
memory/3308-67-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-68-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-65-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-76-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-78-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-79-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-77-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/3308-80-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-81-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-82-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-84-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-86-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-87-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-88-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/3308-89-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-90-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-91-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/3308-94-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-96-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-95-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-92-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-98-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-100-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-101-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/3308-102-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/3308-103-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/4244-5-0x0000000000EE0000-0x0000000000EE2000-memory.dmp

Filesize
8KB

Download
memory/4596-16-0x0000000000A40000-0x0000000000A4B000-memory.dmp

Filesize
44KB

Download
memory/4596-22-0x00000000012E0000-0x000000000130F000-memory.dmp

Filesize
188KB

Download
memory/4596-19-0x0000000001AB0000-0x0000000001DFA000-memory.dmp

Filesize
3.3MB

Download
memory/4596-18-0x00000000012E0000-0x000000000130F000-memory.dmp

Filesize
188KB

Download
memory/4596-17-0x0000000000A40000-0x0000000000A4B000-memory.dmp

Filesize
44KB

Download
memory/4596-23-0x00000000012E0000-0x000000000130F000-memory.dmp

Filesize
188KB

Download
memory/4596-25-0x0000000001900000-0x0000000001993000-memory.dmp

Filesize
588KB

Download