formbook | cf33cf1b99aec2e58ebff495b327734f9d444884af6846ea086c210bd4ee2623

General

Target

Shipment Document BL,INV and packing list.jpg.exe
Size

313KB
MD5

e344bda7899df6fb9d12560254d07a13
SHA1

5d3e07d0d41fd3e16d4f9cde32362120e5f2c8a2
SHA256

cf33cf1b99aec2e58ebff495b327734f9d444884af6846ea086c210bd4ee2623
SHA512

dc6a4fecfd1b4ab873c3ef5d150e2b3c48f891535a989832b16841db652e664b31f111f05f6cd02f7313e9e72bdd963d603796bb570c0297bda93954f97d8275
SSDEEP

6144:wBlL/9pMUHq5ivHw521qti+5WmKasPxo9Rge/LAx9EUEgno9TF0KB:C/+UHq5mSDBK3a9GY8EUFnQF/B

Score

10^/10

formbook fs35 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs35

Decoy

latechdz.com

sdp-ploce.com

ss203.site

sm6yuy.net

needstothink.com

heginstwp.com

blueplumespirit.com

vemconferirshop.click

yorent-auto.com

eleononaly.com

medicalspacelocators.com

7law.info

imacanberra.online

bbtyss.top

onlyanfans.com

varenty.com

fappies.shop

313865.com

hongpools.com

babkacuisine.xyz

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/1732-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1732-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2928-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2928-27-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2184	inqvcprugn.exe
1732	inqvcprugn.exe

Loads dropped DLL 3 IoCs

pid	Process
3032	Shipment Document BL,INV and packing list.jpg.exe
3032	Shipment Document BL,INV and packing list.jpg.exe
2184	inqvcprugn.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 1732	2184	inqvcprugn.exe	29
PID 1732 set thread context of 1224	1732	inqvcprugn.exe	17
PID 2928 set thread context of 1224	2928	NAPSTAT.EXE	17

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1732	inqvcprugn.exe
1732	inqvcprugn.exe
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1224	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2184	inqvcprugn.exe
1732	inqvcprugn.exe
1732	inqvcprugn.exe
1732	inqvcprugn.exe
2928	NAPSTAT.EXE
2928	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	inqvcprugn.exe
Token: SeDebugPrivilege	2928	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2184	3032	Shipment Document BL,INV and packing list.jpg.exe	28
PID 3032 wrote to memory of 2184	3032	Shipment Document BL,INV and packing list.jpg.exe	28
PID 3032 wrote to memory of 2184	3032	Shipment Document BL,INV and packing list.jpg.exe	28
PID 3032 wrote to memory of 2184	3032	Shipment Document BL,INV and packing list.jpg.exe	28
PID 2184 wrote to memory of 1732	2184	inqvcprugn.exe	29
PID 2184 wrote to memory of 1732	2184	inqvcprugn.exe	29
PID 2184 wrote to memory of 1732	2184	inqvcprugn.exe	29
PID 2184 wrote to memory of 1732	2184	inqvcprugn.exe	29
PID 2184 wrote to memory of 1732	2184	inqvcprugn.exe	29
PID 1224 wrote to memory of 2928	1224	Explorer.EXE	30
PID 1224 wrote to memory of 2928	1224	Explorer.EXE	30
PID 1224 wrote to memory of 2928	1224	Explorer.EXE	30
PID 1224 wrote to memory of 2928	1224	Explorer.EXE	30
PID 2928 wrote to memory of 2724	2928	NAPSTAT.EXE	31
PID 2928 wrote to memory of 2724	2928	NAPSTAT.EXE	31
PID 2928 wrote to memory of 2724	2928	NAPSTAT.EXE	31
PID 2928 wrote to memory of 2724	2928	NAPSTAT.EXE	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Users\Admin\AppData\Local\Temp\inqvcprugn.exe
    "C:\Users\Admin\AppData\Local\Temp\inqvcprugn.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2184
  - - C:\Users\Admin\AppData\Local\Temp\inqvcprugn.exe
      "C:\Users\Admin\AppData\Local\Temp\inqvcprugn.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1732
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\inqvcprugn.exe"
    3⤵
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gehhylbdaan.qpl

Filesize
205KB

MD5
54598fba341bf3d7b667f9802011ec08

SHA1
8a9e86b6a131d9d448e34de95aace8dbb8e1841e

SHA256
68ca85e11e70857f5f3a327fd4505d59d912f73298bdc4506d394a7bfac80571

SHA512
c2de01b486353880cf6f5e2bd5e6eba6374f02660c135a15d5e0c186f9f1c9c3286aebf834e30784f5cf08804afa4d06b0b61003f056fbcd0b345e85a5165c9c

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

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

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

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

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

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

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

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

Download Submit
\Users\Admin\AppData\Local\Temp\inqvcprugn.exe

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

Download Submit
\Users\Admin\AppData\Local\Temp\inqvcprugn.exe

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

Download Submit
\Users\Admin\AppData\Local\Temp\inqvcprugn.exe

Filesize
199KB

MD5
ad855d2040a187a78ed564f13a87602b

SHA1
aaa46529f775718f1eddbd7cdc4f2599732d1c4d

SHA256
7eff5b01cff641f7b8c5219920e108630c4a3fee826cf8daa2ec0ea489ac5d85

SHA512
f8da773a3318014f707f9e539aa3ff6c4f97816324f9ee3f66f61b2ec53aea7a7110f8966e7f4e4b2e348e2a3ad75d3c5e55981f9ac2ba56d1cc1c943463f177

Download Submit
memory/1224-20-0x00000000073C0000-0x0000000007544000-memory.dmp

Filesize
1.5MB

Download
memory/1224-40-0x000007FEF6EA0000-0x000007FEF6FE3000-memory.dmp

Filesize
1.3MB

Download
memory/1224-32-0x0000000002B70000-0x0000000002C14000-memory.dmp

Filesize
656KB

Download
memory/1224-30-0x0000000003F20000-0x0000000004120000-memory.dmp

Filesize
2.0MB

Download
memory/1224-18-0x0000000002E80000-0x0000000002F80000-memory.dmp

Filesize
1024KB

Download
memory/1224-33-0x00000000073C0000-0x0000000007544000-memory.dmp

Filesize
1.5MB

Download
memory/1224-34-0x000007FEF6EA0000-0x000007FEF6FE3000-memory.dmp

Filesize
1.3MB

Download
memory/1224-31-0x0000000002B70000-0x0000000002C14000-memory.dmp

Filesize
656KB

Download
memory/1224-37-0x0000000002B70000-0x0000000002C14000-memory.dmp

Filesize
656KB

Download
memory/1224-35-0x000007FF6A670000-0x000007FF6A67A000-memory.dmp

Filesize
40KB

Download
memory/1732-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1732-19-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/1732-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1732-15-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2184-9-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/2928-29-0x0000000000840000-0x00000000008D4000-memory.dmp

Filesize
592KB

Download
memory/2928-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2928-26-0x0000000001FC0000-0x00000000022C3000-memory.dmp

Filesize
3.0MB

Download
memory/2928-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2928-24-0x0000000000B70000-0x0000000000BB6000-memory.dmp

Filesize
280KB

Download
memory/2928-22-0x0000000000B70000-0x0000000000BB6000-memory.dmp

Filesize
280KB

Download

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