formbook | ea8636131cfb69ab935f05201fe8c285b53ccd379928825386b015ae7bb43809

Analysis

max time kernel
150s
max time network
145s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 08:55

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General

Target

2.exe
Size

36KB
MD5

c2a39ff0162982b5b32cd40095681c40
SHA1

14a7a60b9dc574b066ea39f59d72711dab9639c0
SHA256

ea8636131cfb69ab935f05201fe8c285b53ccd379928825386b015ae7bb43809
SHA512

3452c2dfa51691cc5da766542630a87c6e68cf93e5094981ab8905f7696e0c3c45acbf8f4a09b4410a3d5848d29d00b431b4b904472d7dbd1ed63478404172a2
SSDEEP

768:pCpjO4tnumCBsT15CBHCrUCoTtBDtCYPB0t0/qigiltBN:OvnmCxXiltv

Score

10^/10

formbook btrd persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

everslane.com

prairieviewelectric.online

dszvhgd.com

papamuch.com

8129k.vip

jeffreestar.gold

bestguestrentals.com

nvzhuang1.net

anangtoto.com

yxfgor.top

practicalpoppers.com

thebestanglephotography.online

koormm.top

criika.net

audioflow.online

380747.net

jiuguanwang.net

bloxequities.com

v321c.com

sugar.monster

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/2808-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2808-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2808-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2504-25-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2524	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\Users\\Admin\\Documents\\2.pif"	reg.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 2808	3056	2.exe	33
PID 2808 set thread context of 1204	2808	2.exe	21
PID 2808 set thread context of 1204	2808	2.exe	21
PID 2504 set thread context of 1204	2504	help.exe	21

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
3056	2.exe
2808	2.exe
2808	2.exe
2808	2.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe
2504	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2808	2.exe
2808	2.exe
2808	2.exe
2808	2.exe
2504	help.exe
2504	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	2.exe
Token: SeDebugPrivilege	2808	2.exe
Token: SeDebugPrivilege	2504	help.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2748	3056	2.exe	28
PID 3056 wrote to memory of 2748	3056	2.exe	28
PID 3056 wrote to memory of 2748	3056	2.exe	28
PID 3056 wrote to memory of 2748	3056	2.exe	28
PID 2748 wrote to memory of 2948	2748	cmd.exe	30
PID 2748 wrote to memory of 2948	2748	cmd.exe	30
PID 2748 wrote to memory of 2948	2748	cmd.exe	30
PID 2748 wrote to memory of 2948	2748	cmd.exe	30
PID 3056 wrote to memory of 2512	3056	2.exe	31
PID 3056 wrote to memory of 2512	3056	2.exe	31
PID 3056 wrote to memory of 2512	3056	2.exe	31
PID 3056 wrote to memory of 2512	3056	2.exe	31
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 3056 wrote to memory of 2808	3056	2.exe	33
PID 1204 wrote to memory of 2504	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2504	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2504	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2504	1204	Explorer.EXE	34
PID 2504 wrote to memory of 2524	2504	help.exe	35
PID 2504 wrote to memory of 2524	2504	help.exe	35
PID 2504 wrote to memory of 2524	2504	help.exe	35
PID 2504 wrote to memory of 2524	2504	help.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "2" /t REG_SZ /F /D "C:\Users\Admin\Documents\2.pif"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "2" /t REG_SZ /F /D "C:\Users\Admin\Documents\2.pif"
      4⤵
      Adds Run key to start application
      PID:2948
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c Copy "C:\Users\Admin\AppData\Local\Temp\2.exe" "C:\Users\Admin\Documents\2.pif"
    3⤵
    PID:2512
- - C:\Users\Admin\AppData\Local\Temp\2.exe
    "C:\Users\Admin\AppData\Local\Temp\2.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2808
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\2.exe"
    3⤵
    - Deletes itself
    PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1204-17-0x0000000006D40000-0x0000000006E8A000-memory.dmp

Filesize
1.3MB

Download
memory/1204-28-0x0000000007290000-0x00000000073CB000-memory.dmp

Filesize
1.2MB

Download
memory/1204-27-0x0000000007920000-0x0000000007A46000-memory.dmp

Filesize
1.1MB

Download
memory/1204-22-0x0000000007290000-0x00000000073CB000-memory.dmp

Filesize
1.2MB

Download
memory/1204-19-0x0000000006D40000-0x0000000006E8A000-memory.dmp

Filesize
1.3MB

Download
memory/2504-25-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/2504-23-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/2504-24-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/2808-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2808-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2808-13-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download
memory/2808-16-0x00000000002D0000-0x00000000002E4000-memory.dmp

Filesize
80KB

Download
memory/2808-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2808-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2808-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2808-21-0x0000000000330000-0x0000000000344000-memory.dmp

Filesize
80KB

Download
memory/3056-12-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/3056-6-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-3-0x0000000004BC0000-0x0000000004C38000-memory.dmp

Filesize
480KB

Download
memory/3056-2-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-1-0x0000000000B80000-0x0000000000B8E000-memory.dmp

Filesize
56KB

Download