formbook | 8a9a70ca1dd6bd611d2b77bf233ab14f62b259d510973722a1381c237b4980f9

General

Target

SOA_Invoice_04930.exe
Size

620KB
MD5

e980fe4c7833022bb80b70abdda382de
SHA1

8d82c1696df13202dc4d41f23c6df7f5fe18abee
SHA256

8a9a70ca1dd6bd611d2b77bf233ab14f62b259d510973722a1381c237b4980f9
SHA512

72ab8d6ce9e55266a45d60f046ec44df1ab51c6ff20e8f0a8376285921672f9efad57c22a52d2962556dd228d18b28e3d16dc8c3266f0837745ac9f089d5d68f
SSDEEP

12288:NToPWBv/cpGrU3ypp8sGT72T4g+mtCYd/1l1fS7:NTbBv5rUOysGf2kxgN9fQ

Score

10^/10

formbook hzb3 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

hzb3

Decoy

BVGWUXYpaaEaNSjsCHhJnDJz463cqQ==

CEqdZb0KaOLLbWqrDVTgc20=

nBv0jSFiQHxtE6awQnm2

E1sGpCJYtB8ImaguUyF6yQ==

PMBND7LzJGZH7CXulclbs2c=

u9zzlFGDXo6LLbGwQnm2

SaJjLbtVlMgsP5ZQRj4=

wckwEbwBbKA2X3g=

rPxB8ePUxfu4pilu

S562QFeKY5P//qawQnm2

BkEfWXZuY3ihKW8=

ZanakqMxkP7VdNfWdD4FGDqF

PYYbtzdINC1J0OYzQCk=

Fmg9LBxaPQ==

4eXWfoC06yGAkQ0l+Txs2w==

n68j2X6+CIhsD5GiCMYBsHI=

hRv6hpW3qfLbdI1XJ/J825G1TslJ+1JE

X6PAVGfwPHihKW8=

7zn1tkuDaZ2FKbGwQnm2

lB0m5ghWsSmMpIUS8EBM31l/463cqQ==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Executes dropped EXE 1 IoCs

Processes:

ankvqnhtdtpeous.exe

pid process

4884 ankvqnhtdtpeous.exe

pid	process
4884	ankvqnhtdtpeous.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

ankvqnhtdtpeous.exeSOA_Invoice_04930.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ankvqnhtdtpeous.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	SOA_Invoice_04930.exe

Loads dropped DLL 1 IoCs

Processes:

ankvqnhtdtpeous.exe

pid process

4172 ankvqnhtdtpeous.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 3 IoCs

Processes:

ankvqnhtdtpeous.exeankvqnhtdtpeous.exerundll32.exe

description	pid	process	target process
PID 4884 set thread context of 4172	4884	ankvqnhtdtpeous.exe	ankvqnhtdtpeous.exe
PID 4172 set thread context of 2864	4172	ankvqnhtdtpeous.exe	Explorer.EXE
PID 1236 set thread context of 2864	1236	rundll32.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4212 4884 WerFault.exe ankvqnhtdtpeous.exe

pid	pid_target	process	target process
4212	4884	WerFault.exe	ankvqnhtdtpeous.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

ankvqnhtdtpeous.exerundll32.exe

pid	process
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
4172	ankvqnhtdtpeous.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2864 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ankvqnhtdtpeous.exerundll32.exe

pid process

4172 ankvqnhtdtpeous.exe
4172 ankvqnhtdtpeous.exe
4172 ankvqnhtdtpeous.exe
1236 rundll32.exe
1236 rundll32.exe
1236 rundll32.exe
1236 rundll32.exe

pid	process
2864	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

ankvqnhtdtpeous.exeExplorer.EXErundll32.exe

description	pid	process
Token: SeDebugPrivilege	4172	ankvqnhtdtpeous.exe
Token: SeShutdownPrivilege	2864	Explorer.EXE
Token: SeCreatePagefilePrivilege	2864	Explorer.EXE
Token: SeDebugPrivilege	1236	rundll32.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

SOA_Invoice_04930.exeankvqnhtdtpeous.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 3032 wrote to memory of 4884	3032	SOA_Invoice_04930.exe	ankvqnhtdtpeous.exe
PID 3032 wrote to memory of 4884	3032	SOA_Invoice_04930.exe	ankvqnhtdtpeous.exe
PID 3032 wrote to memory of 4884	3032	SOA_Invoice_04930.exe	ankvqnhtdtpeous.exe
PID 4884 wrote to memory of 4172	4884	ankvqnhtdtpeous.exe	ankvqnhtdtpeous.exe
PID 4884 wrote to memory of 4172	4884	ankvqnhtdtpeous.exe	ankvqnhtdtpeous.exe
PID 4884 wrote to memory of 4172	4884	ankvqnhtdtpeous.exe	ankvqnhtdtpeous.exe
PID 4884 wrote to memory of 4172	4884	ankvqnhtdtpeous.exe	ankvqnhtdtpeous.exe
PID 2864 wrote to memory of 1236	2864	Explorer.EXE	rundll32.exe
PID 2864 wrote to memory of 1236	2864	Explorer.EXE	rundll32.exe
PID 2864 wrote to memory of 1236	2864	Explorer.EXE	rundll32.exe
PID 1236 wrote to memory of 4060	1236	rundll32.exe	Firefox.exe
PID 1236 wrote to memory of 4060	1236	rundll32.exe	Firefox.exe
PID 1236 wrote to memory of 4060	1236	rundll32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864

C:\Users\Admin\AppData\Local\Temp\SOA_Invoice_04930.exe
"C:\Users\Admin\AppData\Local\Temp\SOA_Invoice_04930.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3032

C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe
"C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4884

C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe
"C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe"
4⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 576
4⤵
- Program crash
PID:4212

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.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:1236

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4884 -ip 4884
1⤵
PID:3360

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe
Filesize
56KB

MD5
f57bc9937d91e877bfa7a67a22c9f2a1

SHA1
37a4fe9701912a81e0bfe5c9ea755324eb0c6bce

SHA256
4b06895f150c84ee7efc045d704f322946eb7d846a44379a2b8543fe17a991b0

SHA512
2d40e54c3d3ead972398cbc6c62c2ca2702ad64b3102453a746fb57f09a577382b157e38ab42a58d4ba1894a11443a2c500d40660a6fc5f1b4b8bcffc46ddf92

Download Submit
C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe
Filesize
56KB

MD5
f57bc9937d91e877bfa7a67a22c9f2a1

SHA1
37a4fe9701912a81e0bfe5c9ea755324eb0c6bce

SHA256
4b06895f150c84ee7efc045d704f322946eb7d846a44379a2b8543fe17a991b0

SHA512
2d40e54c3d3ead972398cbc6c62c2ca2702ad64b3102453a746fb57f09a577382b157e38ab42a58d4ba1894a11443a2c500d40660a6fc5f1b4b8bcffc46ddf92

Download Submit
C:\Users\Admin\AppData\Local\Temp\ankvqnhtdtpeous.exe
Filesize
56KB

MD5
f57bc9937d91e877bfa7a67a22c9f2a1

SHA1
37a4fe9701912a81e0bfe5c9ea755324eb0c6bce

SHA256
4b06895f150c84ee7efc045d704f322946eb7d846a44379a2b8543fe17a991b0

SHA512
2d40e54c3d3ead972398cbc6c62c2ca2702ad64b3102453a746fb57f09a577382b157e38ab42a58d4ba1894a11443a2c500d40660a6fc5f1b4b8bcffc46ddf92

Download Submit
C:\Users\Admin\AppData\Local\Temp\trgqsjkygi.zkc
Filesize
185KB

MD5
884f2e5433ac0ba1ab3ff5dff446b118

SHA1
c440ef9ce933150e8f63066e33c50a9f7dc6a653

SHA256
8df82e1f8dcbda6ed3ab7099e492db2af137764c8ba46e2e9cadbb2c6e7a3d45

SHA512
b7d5db1ce13689590860f849fbb813659997db97b78f0386eff740e5f7de15364e77869bf01fc2d4b4ae9379d034717a45c1cf9b747049e1c4294f15d0b500ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\tujmf.ukj
Filesize
4KB

MD5
322c9e1f0800f6b6086e0b7e8593d0a8

SHA1
f562b549ee754cd3028f270c0e5fb6cac1b271ed

SHA256
9c65bfce3e58d250da6a8db7f15de36427b7fcaef404f77afd539c45d747026d

SHA512
79f389ac5d06bcfff0de14ca2101b0eef76cd032f1a6f90fb8f82cfdc7b1ae3b376877f62e715740854fd4908f0aa9cecb88e8b220988812cdf4201b04cdf1c0

Download Submit
memory/1236-146-0x0000000000F10000-0x0000000000F3D000-memory.dmp

Filesize
180KB

Download
memory/1236-150-0x0000000000F10000-0x0000000000F3D000-memory.dmp

Filesize
180KB

Download
memory/1236-148-0x0000000002EB0000-0x0000000002F3F000-memory.dmp

Filesize
572KB

Download
memory/1236-147-0x0000000003210000-0x000000000355A000-memory.dmp

Filesize
3.3MB

Download
memory/1236-144-0x0000000000000000-mapping.dmp

Download
memory/1236-145-0x0000000000A10000-0x0000000000A24000-memory.dmp

Filesize
80KB

Download
memory/2864-151-0x00000000029F0000-0x0000000002B11000-memory.dmp

Filesize
1.1MB

Download
memory/2864-149-0x00000000029F0000-0x0000000002B11000-memory.dmp

Filesize
1.1MB

Download
memory/2864-143-0x00000000026E0000-0x00000000027FC000-memory.dmp

Filesize
1.1MB

Download
memory/4172-137-0x0000000000000000-mapping.dmp

Download
memory/4172-142-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/4172-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4172-141-0x0000000001890000-0x0000000001BDA000-memory.dmp

Filesize
3.3MB

Download
memory/4172-139-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4884-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads