formbook | 96e5517bfccfcb53750d9283cbbfe31f427281b5f6a0e61809a68952920c3d0d

General

Target

96e5517bfccfcb53750d9283cbbfe31f427281b5f6a0e61809a68952920c3d0d.xlsx
Size

1.5MB
MD5

49fc6a2dbdacfc87cff4054eb2cc1e9f
SHA1

5d83448795fbd6ca2f8db612647b9588632e8ed0
SHA256

96e5517bfccfcb53750d9283cbbfe31f427281b5f6a0e61809a68952920c3d0d
SHA512

cdd17b36c59a2e5ec1c5296c60933044bcaa2edafe13a91bb8675dd986680bb3e0c1fc12800529bbbcd0c3832f9c826d220cd4cfa08290b52a2c616fa7016196
SSDEEP

24576:n8uIjUZpSdmP705YyIV9K298758nckXj2DnnL/h79KIEs0HGuEarisvas/pq/X2I:nrIjULSu05VIrt6758ncij2fJQIX0mH9

Score

10^/10

formbook hwu6 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hwu6

Decoy

lf758.vip

locerin-hair.shop

vytech.net

pet-insurance-intl-7990489.live

thepolithat.buzz

d66dr114gl.bond

suv-deals-49508.bond

job-offer-53922.bond

drstone1.click

lebahsemesta57.click

olmanihousel.shop

piedmontcsb.info

trisula888x.top

66sodovna.net

dental-implants-83810.bond

imxtld.club

frozenpines.net

ffgzgbl.xyz

tlc7z.rest

alexismuller.design

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2708-31-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2524-35-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Blocklisted process makes network request 4 IoCs

flow	pid	Process
5	2180	EQNEDT32.EXE
6	2180	EQNEDT32.EXE
8	2180	EQNEDT32.EXE
10	2180	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2188	word.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	EQNEDT32.EXE

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00060000000193e6-20.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2188 set thread context of 2708	2188	word.exe	34
PID 2708 set thread context of 1184	2708	svchost.exe	21
PID 2524 set thread context of 1184	2524	wlanext.exe	21

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	word.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2180	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1292	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2708	svchost.exe
2708	svchost.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe
2524	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2188	word.exe
2708	svchost.exe
2708	svchost.exe
2708	svchost.exe
2524	wlanext.exe
2524	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	svchost.exe
Token: SeDebugPrivilege	2524	wlanext.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2188	word.exe
2188	word.exe
1184	Explorer.EXE
1184	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2188	word.exe
2188	word.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1292	EXCEL.EXE
1292	EXCEL.EXE
1292	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2188	2180	EQNEDT32.EXE	33
PID 2180 wrote to memory of 2188	2180	EQNEDT32.EXE	33
PID 2180 wrote to memory of 2188	2180	EQNEDT32.EXE	33
PID 2180 wrote to memory of 2188	2180	EQNEDT32.EXE	33
PID 2188 wrote to memory of 2708	2188	word.exe	34
PID 2188 wrote to memory of 2708	2188	word.exe	34
PID 2188 wrote to memory of 2708	2188	word.exe	34
PID 2188 wrote to memory of 2708	2188	word.exe	34
PID 2188 wrote to memory of 2708	2188	word.exe	34
PID 1184 wrote to memory of 2524	1184	Explorer.EXE	35
PID 1184 wrote to memory of 2524	1184	Explorer.EXE	35
PID 1184 wrote to memory of 2524	1184	Explorer.EXE	35
PID 1184 wrote to memory of 2524	1184	Explorer.EXE	35
PID 2524 wrote to memory of 2652	2524	wlanext.exe	36
PID 2524 wrote to memory of 2652	2524	wlanext.exe	36
PID 2524 wrote to memory of 2652	2524	wlanext.exe	36
PID 2524 wrote to memory of 2652	2524	wlanext.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\96e5517bfccfcb53750d9283cbbfe31f427281b5f6a0e61809a68952920c3d0d.xlsx
  2⤵
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:1292
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2652

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Roaming\word.exe
  C:\Users\Admin\AppData\Roaming\word.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Windows\SysWOW64\svchost.exe
    C:\Users\Admin\AppData\Roaming\word.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\word.exe

Filesize
1.1MB

MD5
223a5b3c7dd0e582a6bb3fd6b94573d3

SHA1
66af74cc3a606e2a3b9a80b095399628fd9e6331

SHA256
a0b9b59b88b2e2d4e208a5166664a07a58f42efcd43f13e79fda779f4cb443bc

SHA512
ce6d2e8ed1d427b05c60f21b9c63cdf30cf9af248d9355519e6bec454a630b4e2e0cc4896b3cda507897213f311e389dc68c6dd7e97034fe26ba22cbb74178f3

Download Submit
memory/1184-39-0x00000000064E0000-0x000000000658A000-memory.dmp

Filesize
680KB

Download
memory/1292-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1292-1-0x00000000721AD000-0x00000000721B8000-memory.dmp

Filesize
44KB

Download
memory/1292-33-0x00000000721AD000-0x00000000721B8000-memory.dmp

Filesize
44KB

Download
memory/2524-34-0x0000000000690000-0x00000000006A6000-memory.dmp

Filesize
88KB

Download
memory/2524-35-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2708-31-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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