formbook | 6f75aa5bfb77700d4a5d180362f67bd23353bb63ae7561c5c19bbca805c6513e

General

Target

AHMR 4036.exe
Size

1.2MB
MD5

086de2ec9b8b5c723d127cbfe35b6d75
SHA1

ed87e00093c8051207c91eaeea7b403a120c1202
SHA256

6452e7934b058662751322258e57f91a8790ab089a93b17062646080e31ea24a
SHA512

2cc91c9d4548d5ba0a03a958caf266563001fda2a5752fa7c65ad7d650ff0fcd1723a5197482466a472f487f58422f620c99d1877568c0548c83f18f05fa0fa0
SSDEEP

24576:S1tTG+YvcFi95eunG2SpnfZ/ykidrl0S3kREYV49Nt:AtTmcFi9ijpnfhyFdTPq49r

Score

10^/10

formbook ba17 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ba17

Decoy

bearwant.com

sdsguanfang.com

steamcommunityvia.top

sugarplumtreasures.com

koronislakefishing.com

jmae.xyz

xhxnqemkiqe.xyz

playzcrew.com

zatwsbq.com

lankofix.com

sh-zhepeng.com

mibodamisxv.online

butterflyjewelry.store

finestrecitalto-spottoday.info

globomateria.com

royalmdarts.com

d4af10836709.com

shepwill.com

67aldrich.info

trustedmakers.club

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1720-68-0x000000000041F1E0-mapping.dmp	formbook
behavioral1/memory/1720-67-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1720-76-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1504-81-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook
behavioral1/memory/1504-85-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

AHMR 4036.exeRegSvcs.exeexplorer.exe

description	pid	process	target process
PID 1764 set thread context of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1720 set thread context of 1320	1720	RegSvcs.exe	Explorer.EXE
PID 1504 set thread context of 1320	1504	explorer.exe	Explorer.EXE

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1368 schtasks.exe

pid	process
1368	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

AHMR 4036.exeRegSvcs.exepowershell.exeexplorer.exe

pid	process
1764	AHMR 4036.exe
1764	AHMR 4036.exe
1764	AHMR 4036.exe
1720	RegSvcs.exe
1720	RegSvcs.exe
1284	powershell.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe
1504	explorer.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exeexplorer.exe

pid process

1720 RegSvcs.exe
1720 RegSvcs.exe
1720 RegSvcs.exe
1504 explorer.exe
1504 explorer.exe

pid	process
1720	RegSvcs.exe
1720	RegSvcs.exe
1720	RegSvcs.exe
1504	explorer.exe
1504	explorer.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

AHMR 4036.exeRegSvcs.exepowershell.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1764	AHMR 4036.exe
Token: SeDebugPrivilege	1720	RegSvcs.exe
Token: SeDebugPrivilege	1284	powershell.exe
Token: SeDebugPrivilege	1504	explorer.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1320 Explorer.EXE
1320 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1320 Explorer.EXE
1320 Explorer.EXE

pid	process
1320	Explorer.EXE
1320	Explorer.EXE

pid	process
1320	Explorer.EXE
1320	Explorer.EXE

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

AHMR 4036.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1764 wrote to memory of 1284	1764	AHMR 4036.exe	powershell.exe
PID 1764 wrote to memory of 1284	1764	AHMR 4036.exe	powershell.exe
PID 1764 wrote to memory of 1284	1764	AHMR 4036.exe	powershell.exe
PID 1764 wrote to memory of 1284	1764	AHMR 4036.exe	powershell.exe
PID 1764 wrote to memory of 1368	1764	AHMR 4036.exe	schtasks.exe
PID 1764 wrote to memory of 1368	1764	AHMR 4036.exe	schtasks.exe
PID 1764 wrote to memory of 1368	1764	AHMR 4036.exe	schtasks.exe
PID 1764 wrote to memory of 1368	1764	AHMR 4036.exe	schtasks.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 536	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1764 wrote to memory of 1720	1764	AHMR 4036.exe	RegSvcs.exe
PID 1320 wrote to memory of 1504	1320	Explorer.EXE	explorer.exe
PID 1320 wrote to memory of 1504	1320	Explorer.EXE	explorer.exe
PID 1320 wrote to memory of 1504	1320	Explorer.EXE	explorer.exe
PID 1320 wrote to memory of 1504	1320	Explorer.EXE	explorer.exe
PID 1504 wrote to memory of 1920	1504	explorer.exe	cmd.exe
PID 1504 wrote to memory of 1920	1504	explorer.exe	cmd.exe
PID 1504 wrote to memory of 1920	1504	explorer.exe	cmd.exe
PID 1504 wrote to memory of 1920	1504	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Local\Temp\AHMR 4036.exe
"C:\Users\Admin\AppData\Local\Temp\AHMR 4036.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tbURtOkVgPTCd.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1284

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tbURtOkVgPTCd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC015.tmp"
3⤵
- Creates scheduled task(s)
PID:1368

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:536

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1720

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1920

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC015.tmp
Filesize
1KB

MD5
da616498f329d74c76c97b5764631576

SHA1
ff47ccea1a9b69a8f31ed544d433383fd952a24c

SHA256
1261f6db6b046c724e5ffc822e7044bfa86c5759808f704140aa08ca1e1d7927

SHA512
34d3932bd0b880aac53f6469684207f4f9c17848194efd31f7fafba16f3a71dbdfa1ab72992af0c346d134d80abffadfe6237ab733c0b79f586a254dd08af9a6

Download Submit
memory/1284-71-0x000000006EB30000-0x000000006F0DB000-memory.dmp

Filesize
5.7MB

Download
memory/1284-69-0x000000006EB30000-0x000000006F0DB000-memory.dmp

Filesize
5.7MB

Download
memory/1284-59-0x0000000000000000-mapping.dmp

Download
memory/1320-86-0x0000000004790000-0x0000000004878000-memory.dmp

Filesize
928KB

Download
memory/1320-74-0x0000000006B80000-0x0000000006D1A000-memory.dmp

Filesize
1.6MB

Download
memory/1320-84-0x0000000004790000-0x0000000004878000-memory.dmp

Filesize
928KB

Download
memory/1368-60-0x0000000000000000-mapping.dmp

Download
memory/1504-78-0x0000000074D61000-0x0000000074D63000-memory.dmp

Filesize
8KB

Download
memory/1504-75-0x0000000000000000-mapping.dmp

Download
memory/1504-85-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1504-83-0x0000000002080000-0x0000000002114000-memory.dmp

Filesize
592KB

Download
memory/1504-82-0x0000000002350000-0x0000000002653000-memory.dmp

Filesize
3.0MB

Download
memory/1504-81-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1504-80-0x0000000000580000-0x0000000000801000-memory.dmp

Filesize
2.5MB

Download
memory/1720-72-0x0000000000A10000-0x0000000000D13000-memory.dmp

Filesize
3.0MB

Download
memory/1720-68-0x000000000041F1E0-mapping.dmp

Download
memory/1720-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-73-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/1720-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1764-55-0x0000000075AF1000-0x0000000075AF3000-memory.dmp

Filesize
8KB

Download
memory/1764-63-0x0000000008050000-0x0000000008084000-memory.dmp

Filesize
208KB

Download
memory/1764-56-0x0000000000650000-0x000000000066A000-memory.dmp

Filesize
104KB

Download
memory/1764-54-0x00000000001D0000-0x0000000000302000-memory.dmp

Filesize
1.2MB

Download
memory/1764-58-0x000000000A1E0000-0x000000000A264000-memory.dmp

Filesize
528KB

Download
memory/1764-57-0x00000000006E0000-0x00000000006EC000-memory.dmp

Filesize
48KB

Download
memory/1920-79-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads