formbook | fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/11/2022, 16:14

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General

Target

fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe
Size

225KB
MD5

c20af4b2b3bcb4bb82ef4a78818caffa
SHA1

ddc2f854e96e649a300c6cba5bc8d57d0af8de58
SHA256

fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57
SHA512

e53b8819e810d853f2fdf86e129058b096df025bdcf8ec308d8f69b796b911f52f0e1c60431654ac03caf081abdcbef807cb664f6581d6ff61ba9742cf2f33ab
SSDEEP

3072:qUJoFfWzzl+cSMY7xIsqoh3vpj+WSuW2x96i6e4coO81ju5qoRNir+QKQqjQgWmA:qweEpGxj9pHHeFwVNr7jzUBWnk/fZ

Score

10^/10

formbook xloader fqsu loader 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

Extracted

Family

xloader

Version

3.8

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
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Executes dropped EXE 2 IoCs

pid	Process
560	bquztp.exe
5084	bquztp.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	bquztp.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 560 set thread context of 5084	560	bquztp.exe	81
PID 5084 set thread context of 2456	5084	bquztp.exe	45
PID 716 set thread context of 2456	716	netsh.exe	45

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2456	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
560	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
5084	bquztp.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe
716	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5084	bquztp.exe
Token: SeDebugPrivilege	716	netsh.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 560	5040	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	80
PID 5040 wrote to memory of 560	5040	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	80
PID 5040 wrote to memory of 560	5040	fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe	80
PID 560 wrote to memory of 5084	560	bquztp.exe	81
PID 560 wrote to memory of 5084	560	bquztp.exe	81
PID 560 wrote to memory of 5084	560	bquztp.exe	81
PID 560 wrote to memory of 5084	560	bquztp.exe	81
PID 2456 wrote to memory of 716	2456	Explorer.EXE	82
PID 2456 wrote to memory of 716	2456	Explorer.EXE	82
PID 2456 wrote to memory of 716	2456	Explorer.EXE	82
PID 716 wrote to memory of 4948	716	netsh.exe	90
PID 716 wrote to memory of 4948	716	netsh.exe	90
PID 716 wrote to memory of 4948	716	netsh.exe	90

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe
  "C:\Users\Admin\AppData\Local\Temp\fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Users\Admin\AppData\Local\Temp\bquztp.exe
    "C:\Users\Admin\AppData\Local\Temp\bquztp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:560
  - - C:\Users\Admin\AppData\Local\Temp\bquztp.exe
      "C:\Users\Admin\AppData\Local\Temp\bquztp.exe"
      4⤵
      Executes dropped EXE
      Checks computer location settings
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:5084
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:716
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\bquztp.exe

Filesize
6KB

MD5
e31a7d32d2fd851ae1b00ff85dd3a9ca

SHA1
1e63242b754008bfae79a5ab8e7a2ea45cc2dcd3

SHA256
aed72f8afba130aa196db63b1b036450d539c55f3bf9a352df09ce1f9202bddf

SHA512
ab51bcfb7d6fe8ff1f62ba030334594c25347eca882348ae1933c7001f841eab24d429704479bb8e343b03e7192506be48a17ece2c999862ee644ec094ced593

Download Submit
C:\Users\Admin\AppData\Local\Temp\eggcij.vx

Filesize
185KB

MD5
cfa7847468c5383cd501f8f805e0021a

SHA1
f44e223a9af2db99ac56f2f7927fb64949ab1664

SHA256
58a415b44850c89beb91dbc1c21c81f8476970ea6226645483f268d68a271cd7

SHA512
e4ae5c17d31e45a9dadf72881cd1c42dd8d82095b0068c620b924c90ea328f0e78ddefb3e14f23da28d650bbe273698586327f4cb07dc6098ecd3920eb6e3d98

Download Submit
C:\Users\Admin\AppData\Local\Temp\nzieacxv.p

Filesize
5KB

MD5
b104c03dbda7dcb8f911d3d48ef3cdc5

SHA1
24f0c3f064a2fc7fbb945bcb89a4dc3914519ff2

SHA256
d9225978ab417360cb9fd791ea653ff49f6b2c4df533d0be078e30eca7b0832f

SHA512
a61e358fe6d43c45b7cb0a00d770ff8b9d0696c8b09ef7b1ac42a51ba838b2854b4d61c05ead24dab15041dfdde661f32422da650231c170e2cfc8d325491d66

Download Submit
memory/716-147-0x0000000001420000-0x000000000143E000-memory.dmp

Filesize
120KB

Download
memory/716-152-0x0000000000E20000-0x0000000000E4D000-memory.dmp

Filesize
180KB

Download
memory/716-150-0x0000000001540000-0x00000000015CF000-memory.dmp

Filesize
572KB

Download
memory/716-149-0x0000000000E20000-0x0000000000E4D000-memory.dmp

Filesize
180KB

Download
memory/716-148-0x0000000001700000-0x0000000001A4A000-memory.dmp

Filesize
3.3MB

Download
memory/2456-153-0x00000000028F0000-0x00000000029D3000-memory.dmp

Filesize
908KB

Download
memory/2456-151-0x00000000028F0000-0x00000000029D3000-memory.dmp

Filesize
908KB

Download
memory/2456-143-0x0000000008470000-0x00000000085B8000-memory.dmp

Filesize
1.3MB

Download
memory/5084-146-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/5084-145-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5084-142-0x0000000000D60000-0x0000000000D70000-memory.dmp

Filesize
64KB

Download
memory/5084-141-0x00000000011E0000-0x000000000152A000-memory.dmp

Filesize
3.3MB

Download
memory/5084-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5084-140-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download