formbook | ba51afdb597f570e1914c3253b219b6397f9df8f6448a33991dafe561706f2db

General

Target

DHL SHIPMENT.exe
Size

274KB
MD5

904526ba0b032ab844c0b258a9b038a1
SHA1

2c5ae47c87cf9111300fc0063f8054a5e33e8cab
SHA256

ba51afdb597f570e1914c3253b219b6397f9df8f6448a33991dafe561706f2db
SHA512

ec393d0efe237a274570dd986d162748fd8d6dc5183a2745a6dd8870b21f000fa495742937e19f05ea6220c27adaa21f7a1ecafa7bd20f070a54334d8cb14520
SSDEEP

6144:nKsjATsXadzG3nGFqPwlwV/ERgSi1AbQ6Qi33IBzz6jG:KsjATsXaw3WywO2gSgANQioBzz6K

Score

10^/10

formbook fqsu rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

fqsu

Decoy

GhfTqaOqC4FsyoQRW/8=

kbPIpd/8k1C6zJz5mYYdK90ZUA==

VIdg/CoNGeYJHA==

KhzoqndOhw1j43z0ew==

wv8mTDcsX2wJN/Q=

MqBgt6S+3BgGKBQHLZy7Ucg=

GyhOb++nZDi39NPK7dbaKapf

pBtD1UoSTdo3eSp9H7OhRqMV0TAuKMU=

WTzTg1w+fP4fMO0oPPM=

NS/tpGdUwkiMwqmgkxoSzjrQATAuKMU=

MnoSdM1hYn4tdwxjB2fX

3EUfH2EJY17mMf4=

V9/wg2yCQruVszm7V+4=

aNL8pZCGYW4Ej2LD

1Bif9VkmdgVfrJqRvl1GtlTZq1M=

9wHIgmB8EOB2uUVcUfk=

1Fdn15qem+fL1qhrY9xdQmAnVg==

Y32ThttYUUr6PsuRmozlNP74RD+uBz7dOQ==

f5HKyoWNAJLM2qjnZlizsvXDKFs=

mRfaGezap6ZyvJqthZvf

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1192	chkdsk.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1604 set thread context of 1600	1604	DHL SHIPMENT.exe	27
PID 1600 set thread context of 1212	1600	cvtres.exe	14
PID 1192 set thread context of 1212	1192	chkdsk.exe	14

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1600	cvtres.exe
1600	cvtres.exe
1600	cvtres.exe
1600	cvtres.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1600	cvtres.exe
1600	cvtres.exe
1600	cvtres.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe
1192	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	cvtres.exe
Token: SeDebugPrivilege	1192	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1604 wrote to memory of 1600	1604	DHL SHIPMENT.exe	27
PID 1212 wrote to memory of 1192	1212	Explorer.EXE	28
PID 1212 wrote to memory of 1192	1212	Explorer.EXE	28
PID 1212 wrote to memory of 1192	1212	Explorer.EXE	28
PID 1212 wrote to memory of 1192	1212	Explorer.EXE	28
PID 1192 wrote to memory of 588	1192	chkdsk.exe	31
PID 1192 wrote to memory of 588	1192	chkdsk.exe	31
PID 1192 wrote to memory of 588	1192	chkdsk.exe	31
PID 1192 wrote to memory of 588	1192	chkdsk.exe	31
PID 1192 wrote to memory of 588	1192	chkdsk.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\DHL SHIPMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL SHIPMENT.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1600
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
832KB

MD5
07fb6d31f37fb1b4164bef301306c288

SHA1
4cb41af6d63a07324ef6b18b1a1f43ce94e25626

SHA256
06ddf0a370af00d994824605a8e1307ba138f89b2d864539f0d19e8804edac02

SHA512
cab4a7c5805b80851aba5f2c9b001fabc1416f6648d891f49eacc81fe79287c5baa01306a42298da722750b812a4ea85388ffae9200dcf656dd1d5b5b9323353

Download Submit
memory/1192-78-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1192-75-0x00000000009E0000-0x0000000000A6F000-memory.dmp

Filesize
572KB

Download
memory/1192-74-0x0000000002120000-0x0000000002423000-memory.dmp

Filesize
3.0MB

Download
memory/1192-73-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download
memory/1192-72-0x0000000000D10000-0x0000000000D17000-memory.dmp

Filesize
28KB

Download
memory/1212-68-0x0000000004B80000-0x0000000004CB6000-memory.dmp

Filesize
1.2MB

Download
memory/1212-77-0x0000000004CC0000-0x0000000004DE6000-memory.dmp

Filesize
1.1MB

Download
memory/1212-76-0x0000000004CC0000-0x0000000004DE6000-memory.dmp

Filesize
1.1MB

Download
memory/1600-67-0x00000000000F0000-0x0000000000100000-memory.dmp

Filesize
64KB

Download
memory/1600-66-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/1600-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1600-71-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1600-64-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1600-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1600-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1600-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1600-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1604-54-0x0000000000F90000-0x0000000000FD8000-memory.dmp

Filesize
288KB

Download
memory/1604-56-0x00000000008B0000-0x00000000008B8000-memory.dmp

Filesize
32KB

Download
memory/1604-55-0x0000000000350000-0x000000000035C000-memory.dmp

Filesize
48KB

Download

Analysis

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