formbook | 85259a321d6b1d54bae58397546222f0cf4584467240f0cbcdb7445577b66510

Analysis

max time kernel
148s
max time network
140s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
22-03-2023 19:47

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General

Target

78a95a8cb18e37d6565520be5e8013c4.exe
Size

286KB
MD5

78a95a8cb18e37d6565520be5e8013c4
SHA1

36557486465d9d133f2ea5aceaec9731f0663f91
SHA256

85259a321d6b1d54bae58397546222f0cf4584467240f0cbcdb7445577b66510
SHA512

7a811797afff6e82082296a10e5f3135340f126d1230bc15983737c0363c082b8bf7651d0732d85f89c5d08e13177fed789851c6402444c4dc794ee68d90be44
SSDEEP

6144:AYa66rPn6SbiaFiPvZNU2tpErTwf4ceMXIECWoqgruCRnMti4oZQ:AYsrPn6Mia4PXU2tpswfx4WvCRwoZQ

Score

10^/10

formbook bn26 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bn26

Decoy

juweipai.com

assurance-mon-espace-sante.com

robqq.com

ablindear.com

socialmonkeys.co.uk

learningworldtech.com

imprese-it.com

themoodcollectives.africa

lutonmethodists.org.uk

castawaycovebnb.com

caronthemove.com

carolinacastro.uk

dcfashionweekintl.com

branchbasicsa.com

drpatrickakinsanya.africa

inventourownfuture.com

applege.top

whatamitiredof.com

daphan.pics

gardenstatevinyl.net

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/768-68-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/768-75-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/768-78-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1172-83-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/1172-85-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

Processes:

jswyhdinmg.exejswyhdinmg.exe

pid process

1208 jswyhdinmg.exe
768 jswyhdinmg.exe
Loads dropped DLL 3 IoCs

Processes:

78a95a8cb18e37d6565520be5e8013c4.exejswyhdinmg.exe

pid process

1712 78a95a8cb18e37d6565520be5e8013c4.exe
1712 78a95a8cb18e37d6565520be5e8013c4.exe
1208 jswyhdinmg.exe

pid	process
1208	jswyhdinmg.exe
768	jswyhdinmg.exe

pid	process
1712	78a95a8cb18e37d6565520be5e8013c4.exe
1712	78a95a8cb18e37d6565520be5e8013c4.exe
1208	jswyhdinmg.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

jswyhdinmg.exejswyhdinmg.exeNAPSTAT.EXE

description	pid	process	target process
PID 1208 set thread context of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 768 set thread context of 1252	768	jswyhdinmg.exe	Explorer.EXE
PID 768 set thread context of 1252	768	jswyhdinmg.exe	Explorer.EXE
PID 1172 set thread context of 1252	1172	NAPSTAT.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

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

jswyhdinmg.exeNAPSTAT.EXE

pid	process
768	jswyhdinmg.exe
768	jswyhdinmg.exe
768	jswyhdinmg.exe
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

jswyhdinmg.exejswyhdinmg.exeNAPSTAT.EXE

pid process

1208 jswyhdinmg.exe
768 jswyhdinmg.exe
768 jswyhdinmg.exe
768 jswyhdinmg.exe
768 jswyhdinmg.exe
1172 NAPSTAT.EXE
1172 NAPSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

jswyhdinmg.exeNAPSTAT.EXE

description pid process

Token: SeDebugPrivilege 768 jswyhdinmg.exe
Token: SeDebugPrivilege 1172 NAPSTAT.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE

pid	process
1252	Explorer.EXE

pid	process
1208	jswyhdinmg.exe
768	jswyhdinmg.exe
768	jswyhdinmg.exe
768	jswyhdinmg.exe
768	jswyhdinmg.exe
1172	NAPSTAT.EXE
1172	NAPSTAT.EXE

description	pid	process
Token: SeDebugPrivilege	768	jswyhdinmg.exe
Token: SeDebugPrivilege	1172	NAPSTAT.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

78a95a8cb18e37d6565520be5e8013c4.exejswyhdinmg.exejswyhdinmg.exeNAPSTAT.EXE

description	pid	process	target process
PID 1712 wrote to memory of 1208	1712	78a95a8cb18e37d6565520be5e8013c4.exe	jswyhdinmg.exe
PID 1712 wrote to memory of 1208	1712	78a95a8cb18e37d6565520be5e8013c4.exe	jswyhdinmg.exe
PID 1712 wrote to memory of 1208	1712	78a95a8cb18e37d6565520be5e8013c4.exe	jswyhdinmg.exe
PID 1712 wrote to memory of 1208	1712	78a95a8cb18e37d6565520be5e8013c4.exe	jswyhdinmg.exe
PID 1208 wrote to memory of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 1208 wrote to memory of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 1208 wrote to memory of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 1208 wrote to memory of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 1208 wrote to memory of 768	1208	jswyhdinmg.exe	jswyhdinmg.exe
PID 768 wrote to memory of 1172	768	jswyhdinmg.exe	NAPSTAT.EXE
PID 768 wrote to memory of 1172	768	jswyhdinmg.exe	NAPSTAT.EXE
PID 768 wrote to memory of 1172	768	jswyhdinmg.exe	NAPSTAT.EXE
PID 768 wrote to memory of 1172	768	jswyhdinmg.exe	NAPSTAT.EXE
PID 1172 wrote to memory of 1504	1172	NAPSTAT.EXE	cmd.exe
PID 1172 wrote to memory of 1504	1172	NAPSTAT.EXE	cmd.exe
PID 1172 wrote to memory of 1504	1172	NAPSTAT.EXE	cmd.exe
PID 1172 wrote to memory of 1504	1172	NAPSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1252
- C:\Users\Admin\AppData\Local\Temp\78a95a8cb18e37d6565520be5e8013c4.exe
  "C:\Users\Admin\AppData\Local\Temp\78a95a8cb18e37d6565520be5e8013c4.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Users\Admin\AppData\Local\Temp\jswyhdinmg.exe
    "C:\Users\Admin\AppData\Local\Temp\jswyhdinmg.exe" C:\Users\Admin\AppData\Local\Temp\puvmbvd.ivv
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1208
  - - C:\Users\Admin\AppData\Local\Temp\jswyhdinmg.exe
      "C:\Users\Admin\AppData\Local\Temp\jswyhdinmg.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:768
    - - C:\Windows\SysWOW64\NAPSTAT.EXE
        
        "C:\Windows\SysWOW64\NAPSTAT.EXE"
        5⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1172
      - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\jswyhdinmg.exe"
        6⤵
        
        PID:1504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

Download Submit
C:\Users\Admin\AppData\Local\Temp\potdzpp.y

Filesize
205KB

MD5
57e7a6532f1ee86992e7b4fa6580cb19

SHA1
3d8ea00a0b9d9f167e0433afea928b68de50980f

SHA256
7b96a34af9cd31c98ddc997366b3576174a392071ab344ac8f6a072d53c42547

SHA512
e25a318bc187ff13f50a6bdafd7ced1a141297895600b750aaf52831c38aa229a9fc964fd5eaf8abee7fc803ac8d872d2a88883f07b7a4f4df8de7849c28aa25

Download Submit
C:\Users\Admin\AppData\Local\Temp\puvmbvd.ivv

Filesize
5KB

MD5
2756cf827356d936638f325fc53574a1

SHA1
1d05b474adb777cb85ecd0ad2f06ff9fca1ee2ab

SHA256
efae399d371cd9d2132b7c4143469da0c72f4aa559dadfcd03011e4f06cec9e7

SHA512
fb635c25243ea0bc0d74bce2e203ce7a12a7b5fad3e4603c1fde7dbe16415be12578d804f911d1d07cb80be6ee6230ee6848ab9130f9bfb8e784f05ec05a7ad6

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

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

Filesize
54KB

MD5
7b3f0fa0f8b825f576c98b25aab2507e

SHA1
2b206f89862e0dbecf2bb7c6f4be20b57fd6c26d

SHA256
d7f5cdc9f9b70f73dc8fb1c07e0203d69a4c4b987dc909c926060bbeaaade646

SHA512
06692a89c230ed6c614a037410fe99de381354f302501c9cefa486c31fc9e2f35beb94d56622874ec7de41a36e7c1c4ee5fae097b26bb453254d075bde786cd0

Download Submit
memory/768-68-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/768-78-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/768-71-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/768-73-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/768-75-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/768-76-0x0000000000390000-0x00000000003A5000-memory.dmp

Filesize
84KB

Download
memory/1172-82-0x00000000001B0000-0x00000000001F6000-memory.dmp

Filesize
280KB

Download
memory/1172-80-0x00000000001B0000-0x00000000001F6000-memory.dmp

Filesize
280KB

Download
memory/1172-83-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1172-84-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/1172-85-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1172-87-0x0000000001DA0000-0x0000000001E34000-memory.dmp

Filesize
592KB

Download
memory/1252-77-0x0000000006100000-0x00000000061F7000-memory.dmp

Filesize
988KB

Download
memory/1252-74-0x0000000005DD0000-0x0000000005EB8000-memory.dmp

Filesize
928KB

Download
memory/1252-86-0x0000000002DE0000-0x0000000002EE0000-memory.dmp

Filesize
1024KB

Download
memory/1252-88-0x0000000006200000-0x00000000062B9000-memory.dmp

Filesize
740KB

Download
memory/1252-90-0x0000000006200000-0x00000000062B9000-memory.dmp

Filesize
740KB

Download
memory/1252-92-0x0000000006200000-0x00000000062B9000-memory.dmp

Filesize
740KB

Download