formbook | d1933850d05d345bc57356333ebe41446a5e1f7a7b09626a6906202f174852c1

Analysis

max time kernel
151s
max time network
165s
platform
windows10_x64
resource
win10v20210408
submitted
30-07-2021 15:25

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General

Target

2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe
Size

614KB
MD5

028bf5bc572cf06e10c315334c397649
SHA1

cf69c58a4e35b7290af44ec658edc3582655f84d
SHA256

2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff
SHA512

cda1ba7ed4e86e60bb83bc1c71ec51c57b5f676622c3daf067d3c04e176ff2709417bc0ec2fbade98f5140e077eacffc0e54cbf1415f2c7f45caac9ce20e929c

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

http://www.prospertraining.info/ymmi/

Decoy

terrapotencia.com

issytosou.net

samankapan.com

zzxitang.com

iapple-uk.com

robertcollinsrealtor.com

theweehero.com

jyotisagar.net

powerbi.fitness

nuoyilm.com

modelsara.com

langvietco.com

aplusroofer.com

isabelacalaca.com

bearhawk.one

exporaoverseas.com

box-appliance.com

walkingfishvod.com

onlyqna.com

feed-parser.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

resource	yara_rule
behavioral15/memory/1508-115-0x0000000000000000-mapping.dmp	formbook
behavioral15/memory/1508-117-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral15/memory/1332-124-0x0000000003060000-0x000000000308E000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 3020	1508	logagent.exe	22
PID 1332 set thread context of 3020	1332	msdt.exe	22

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3800	660	WerFault.exe	34

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
3800	WerFault.exe
1508	logagent.exe
1508	logagent.exe
1508	logagent.exe
1508	logagent.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe
1332	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3020	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1508	logagent.exe
1508	logagent.exe
1508	logagent.exe
1332	msdt.exe
1332	msdt.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	3800	WerFault.exe
Token: SeBackupPrivilege	3800	WerFault.exe
Token: SeDebugPrivilege	3800	WerFault.exe
Token: SeDebugPrivilege	1508	logagent.exe
Token: SeDebugPrivilege	1332	msdt.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3020	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 660 wrote to memory of 1508	660	2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe	80
PID 3020 wrote to memory of 1332	3020	Explorer.EXE	81
PID 3020 wrote to memory of 1332	3020	Explorer.EXE	81
PID 3020 wrote to memory of 1332	3020	Explorer.EXE	81
PID 1332 wrote to memory of 312	1332	msdt.exe	82
PID 1332 wrote to memory of 312	1332	msdt.exe	82
PID 1332 wrote to memory of 312	1332	msdt.exe	82

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe
  "C:\Users\Admin\AppData\Local\Temp\2c7540c6d066510b73a1a5c668dc74ec6d0d3f0716bb3adb6cd83afdd07f35ff.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 660 -s 1312
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3800
- - C:\Windows\SysWOW64\logagent.exe
    C:\Windows\System32\logagent.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1508
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1332
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\logagent.exe"
    3⤵
    PID:312

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/660-114-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1332-126-0x0000000004BC0000-0x0000000004C53000-memory.dmp

Filesize
588KB

Download
memory/1332-123-0x0000000004E40000-0x0000000005160000-memory.dmp

Filesize
3.1MB

Download
memory/1332-124-0x0000000003060000-0x000000000308E000-memory.dmp

Filesize
184KB

Download
memory/1332-122-0x0000000000830000-0x00000000009A3000-memory.dmp

Filesize
1.4MB

Download
memory/1508-116-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1508-119-0x00000000046E0000-0x00000000046F4000-memory.dmp

Filesize
80KB

Download
memory/1508-118-0x00000000047F0000-0x0000000004B10000-memory.dmp

Filesize
3.1MB

Download
memory/1508-117-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/3020-120-0x0000000005EC0000-0x0000000005FCC000-memory.dmp

Filesize
1.0MB

Download
memory/3020-127-0x00000000028D0000-0x00000000029B1000-memory.dmp

Filesize
900KB

Download