formbook | ca9dc37d5af616843ef202f89a4ce2cef6fbbc3bce92456193af9cc77bea1af0

General

Target

jetsduu7564.exe
Size

222KB
MD5

75dc2f78f5b5c89fbee266137feec698
SHA1

0b2f0dd1cd2909336a6a3f553f7c7e30e4557c1b
SHA256

ca9dc37d5af616843ef202f89a4ce2cef6fbbc3bce92456193af9cc77bea1af0
SHA512

823d6c55719ff22634fa7c3538768e5dbfe65ff9944dda228b541dbaac33d00367c2e8eb2530eb40fcdf11692e96bd5bc91d51348afe2998ef84527462b3f9b4
SSDEEP

3072:WfJSq+ytGIon9KcSMNDd7ul1JUx6edox1vva7m8f4xQ3bWoG5hlYkE83EHduo9IM:MEa0NXUM6QA9dtE8y+pct1v

Score

10^/10

formbook je14 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

je14

Decoy

innervisionbuildings.com

theenergysocialite.com

565548.com

panghr.com

onlyonesolutions.com

stjohnzone6.com

cnotes.rest

helfeb.online

xixi-s-inc.club

easilyentered.com

theshopx.store

mrclean-ac.com

miamibeachwateradventures.com

jpearce.co.uk

seseragi-bunkou.com

minimaddie.com

commbank-help-849c3.com

segohandelsonderneming.com

namthanhreal.com

fototerapi.online

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/944-65-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1128-72-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/1128-76-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

Processes:

dufjl.exedufjl.exe

pid process

1680 dufjl.exe
944 dufjl.exe
Loads dropped DLL 2 IoCs

Processes:

jetsduu7564.exedufjl.exe

pid process

1504 jetsduu7564.exe
1680 dufjl.exe

pid	process
1680	dufjl.exe
944	dufjl.exe

pid	process
1504	jetsduu7564.exe
1680	dufjl.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dufjl.exedufjl.exechkdsk.exe

description	pid	process	target process
PID 1680 set thread context of 944	1680	dufjl.exe	dufjl.exe
PID 944 set thread context of 1376	944	dufjl.exe	Explorer.EXE
PID 1128 set thread context of 1376	1128	chkdsk.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
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

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

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

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

dufjl.exechkdsk.exe

pid	process
944	dufjl.exe
944	dufjl.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe
1128	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

dufjl.exedufjl.exechkdsk.exe

pid process

1680 dufjl.exe
944 dufjl.exe
944 dufjl.exe
944 dufjl.exe
1128 chkdsk.exe
1128 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dufjl.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 944 dufjl.exe
Token: SeDebugPrivilege 1128 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE

pid	process
1680	dufjl.exe
944	dufjl.exe
944	dufjl.exe
944	dufjl.exe
1128	chkdsk.exe
1128	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	944	dufjl.exe
Token: SeDebugPrivilege	1128	chkdsk.exe

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

jetsduu7564.exedufjl.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1504 wrote to memory of 1680	1504	jetsduu7564.exe	dufjl.exe
PID 1504 wrote to memory of 1680	1504	jetsduu7564.exe	dufjl.exe
PID 1504 wrote to memory of 1680	1504	jetsduu7564.exe	dufjl.exe
PID 1504 wrote to memory of 1680	1504	jetsduu7564.exe	dufjl.exe
PID 1680 wrote to memory of 944	1680	dufjl.exe	dufjl.exe
PID 1680 wrote to memory of 944	1680	dufjl.exe	dufjl.exe
PID 1680 wrote to memory of 944	1680	dufjl.exe	dufjl.exe
PID 1680 wrote to memory of 944	1680	dufjl.exe	dufjl.exe
PID 1680 wrote to memory of 944	1680	dufjl.exe	dufjl.exe
PID 1376 wrote to memory of 1128	1376	Explorer.EXE	chkdsk.exe
PID 1376 wrote to memory of 1128	1376	Explorer.EXE	chkdsk.exe
PID 1376 wrote to memory of 1128	1376	Explorer.EXE	chkdsk.exe
PID 1376 wrote to memory of 1128	1376	Explorer.EXE	chkdsk.exe
PID 1128 wrote to memory of 2036	1128	chkdsk.exe	cmd.exe
PID 1128 wrote to memory of 2036	1128	chkdsk.exe	cmd.exe
PID 1128 wrote to memory of 2036	1128	chkdsk.exe	cmd.exe
PID 1128 wrote to memory of 2036	1128	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\jetsduu7564.exe
"C:\Users\Admin\AppData\Local\Temp\jetsduu7564.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\Temp\dufjl.exe
"C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1680

C:\Users\Admin\AppData\Local\Temp\dufjl.exe
"C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:944

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
3⤵
PID:2036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\cpaswq.kj
Filesize
185KB

MD5
e2d0bcb6f272fb13c8d5f4e0fafcd7ef

SHA1
705c2f283f217983108d2d14bec2dd05ba84cb97

SHA256
cdf8be85aca508ae572693b876b9f3daacf2cf6e80c01534d04b97b61879526e

SHA512
c4583b159625f0fe32d02dfe05169f8b54aadc1169498ba6b58ec34d3056432f24cf46532a2aa0acdc717ef821963da4100feeec7083f32672b884ac91deed95

Download Submit
C:\Users\Admin\AppData\Local\Temp\dufjl.exe
Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
C:\Users\Admin\AppData\Local\Temp\dufjl.exe
Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
C:\Users\Admin\AppData\Local\Temp\dufjl.exe
Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
C:\Users\Admin\AppData\Local\Temp\szvgcg.vc
Filesize
5KB

MD5
16f17c0cd30705a753aeb3a307ff26ed

SHA1
b910a46922b4e8911638d9295e83f970214df676

SHA256
9e292156b1545d54b76eee5c885fe16256cfc2d575a9f235480e66d3e5780677

SHA512
5a808bff270ebf1edaa47e702b0f6ce3987cd8d6f141d6a6a36495448d0ccf1f485a2af694588bede83f435815eb7e0245368d00e8464e43c6c4a82f110299ec

Download Submit
\Users\Admin\AppData\Local\Temp\dufjl.exe
Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
\Users\Admin\AppData\Local\Temp\dufjl.exe
Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
memory/944-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/944-66-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/944-63-0x000000000041F120-mapping.dmp

Download
memory/944-67-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/1128-69-0x0000000000000000-mapping.dmp

Download
memory/1128-72-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1128-73-0x00000000020F0000-0x00000000023F3000-memory.dmp

Filesize
3.0MB

Download
memory/1128-71-0x0000000000CE0000-0x0000000000CE7000-memory.dmp

Filesize
28KB

Download
memory/1128-74-0x0000000000A30000-0x0000000000AC3000-memory.dmp

Filesize
588KB

Download
memory/1128-76-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1376-68-0x0000000006C90000-0x0000000006DC8000-memory.dmp

Filesize
1.2MB

Download
memory/1376-75-0x0000000006DD0000-0x0000000006F30000-memory.dmp

Filesize
1.4MB

Download
memory/1376-77-0x0000000006DD0000-0x0000000006F30000-memory.dmp

Filesize
1.4MB

Download
memory/1504-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1680-56-0x0000000000000000-mapping.dmp

Download
memory/2036-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads