formbook | cda350f17f9da84bd3c76f325656630c4724eeaa08949d9d99941859bf8f0315

Resubmissions

04-09-2023 14:09

230904-rf4jrage7v 10

04-09-2023 14:05

230904-rdt8asha39 10

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
04-09-2023 14:05

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General

Target

aeMGQio1TJuPBzR.exe
Size

665KB
MD5

5ae74ac0fe21a6a624f680a5d9ea7959
SHA1

c9121ba150a388a93078a5e5f51a9d46234ff418
SHA256

cda350f17f9da84bd3c76f325656630c4724eeaa08949d9d99941859bf8f0315
SHA512

27372957da07e97f756d8b1b2571b4b12592a67e3caf4a2152114d42bcd074164f770c8793f7fec8adc000b06db9637520ffa742e5947dafb9ac72950abd6c68
SSDEEP

12288:2dfSRtdn2lq3PaiXoJT7VXktGsBb9x+2OvPk0EGHkRk6jpM:2wn2lq3yiaTxktGst9S2GHkRpjp

Score

10^/10

formbook u1r9 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u1r9

Decoy

brightlegalclub.com

90008555.com

nakedfitness.club

asdfcdxsz.link

ocp9z047.click

1xbet-znx.top

takmeeiiom.online

loveofacoffee.com

elodieshiatsu-bienetre.com

waijaihome.com

loanslatvia.today

nbdgt.club

celicrt.online

onsitecomputers.net

learnwithfad.com

civilservice.app

grecoemploymentlaw.com

7780to1.com

ontimefishing.com

extremepaverfl.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/1972-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1972-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1760-20-0x0000000000380000-0x00000000003AF000-memory.dmp	formbook
behavioral2/memory/1760-22-0x0000000000380000-0x00000000003AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 1972 set thread context of 3160	1972	aeMGQio1TJuPBzR.exe	38
PID 1760 set thread context of 3160	1760	netsh.exe	38

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
1972	aeMGQio1TJuPBzR.exe
1972	aeMGQio1TJuPBzR.exe
1972	aeMGQio1TJuPBzR.exe
1972	aeMGQio1TJuPBzR.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe
1760	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3160	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1972	aeMGQio1TJuPBzR.exe
1972	aeMGQio1TJuPBzR.exe
1972	aeMGQio1TJuPBzR.exe
1760	netsh.exe
1760	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	aeMGQio1TJuPBzR.exe
Token: SeDebugPrivilege	1760	netsh.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3160	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 740 wrote to memory of 1972	740	aeMGQio1TJuPBzR.exe	92
PID 3160 wrote to memory of 1760	3160	Explorer.EXE	93
PID 3160 wrote to memory of 1760	3160	Explorer.EXE	93
PID 3160 wrote to memory of 1760	3160	Explorer.EXE	93
PID 1760 wrote to memory of 4852	1760	netsh.exe	94
PID 1760 wrote to memory of 4852	1760	netsh.exe	94
PID 1760 wrote to memory of 4852	1760	netsh.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Users\Admin\AppData\Local\Temp\aeMGQio1TJuPBzR.exe
  "C:\Users\Admin\AppData\Local\Temp\aeMGQio1TJuPBzR.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\Users\Admin\AppData\Local\Temp\aeMGQio1TJuPBzR.exe
    "C:\Users\Admin\AppData\Local\Temp\aeMGQio1TJuPBzR.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1972
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\aeMGQio1TJuPBzR.exe"
    3⤵
    PID:4852

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/740-11-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/740-1-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/740-2-0x0000000005400000-0x00000000059A4000-memory.dmp

Filesize
5.6MB

Download
memory/740-3-0x0000000004EF0000-0x0000000004F82000-memory.dmp

Filesize
584KB

Download
memory/740-4-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/740-5-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

Filesize
40KB

Download
memory/740-6-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/740-7-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/740-8-0x0000000008E00000-0x0000000008E9C000-memory.dmp

Filesize
624KB

Download
memory/740-0-0x0000000000410000-0x00000000004BC000-memory.dmp

Filesize
688KB

Download
memory/1760-21-0x00000000010E0000-0x000000000142A000-memory.dmp

Filesize
3.3MB

Download
memory/1760-25-0x0000000000F20000-0x0000000000FB3000-memory.dmp

Filesize
588KB

Download
memory/1760-17-0x0000000000F00000-0x0000000000F1E000-memory.dmp

Filesize
120KB

Download
memory/1760-19-0x0000000000F00000-0x0000000000F1E000-memory.dmp

Filesize
120KB

Download
memory/1760-20-0x0000000000380000-0x00000000003AF000-memory.dmp

Filesize
188KB

Download
memory/1760-22-0x0000000000380000-0x00000000003AF000-memory.dmp

Filesize
188KB

Download
memory/1972-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1972-15-0x0000000001C00000-0x0000000001C14000-memory.dmp

Filesize
80KB

Download
memory/1972-12-0x0000000001720000-0x0000000001A6A000-memory.dmp

Filesize
3.3MB

Download
memory/1972-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3160-16-0x0000000008FF0000-0x000000000915B000-memory.dmp

Filesize
1.4MB

Download
memory/3160-23-0x0000000008FF0000-0x000000000915B000-memory.dmp

Filesize
1.4MB

Download
memory/3160-26-0x0000000009160000-0x000000000927D000-memory.dmp

Filesize
1.1MB

Download
memory/3160-27-0x0000000009160000-0x000000000927D000-memory.dmp

Filesize
1.1MB

Download
memory/3160-29-0x0000000009160000-0x000000000927D000-memory.dmp

Filesize
1.1MB

Download