formbook | 36ea5e98f9aa4987174b4edb33c937f9091f1e06fd370f7f8e66da700700539f

General

Target

PI and payment confirmed pdf.exe
Size

1.1MB
MD5

b10d83ecfd730b5f98a21efac49c00bd
SHA1

9db5aef9870fd0aebc796a2107871b0de6af9716
SHA256

36ea5e98f9aa4987174b4edb33c937f9091f1e06fd370f7f8e66da700700539f
SHA512

0ef0ad1d182fc254a96c6c71792fb6b0083963151770d6e3f9bdc156bb16111ce51d5bfd4a36c187732c3d08b5267ebd934d49c5273cb66a26c1728cd41928e6
SSDEEP

24576:MbrDmg606ige8Nl24myHD6GfZX8H5tav:0tqw

Score

10^/10

formbook modiloader n7ak persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

wise-transfer.info

jam-nins.com

thebestsocialcrm.com

majomeow222.com

ancientshadowguilt.space

gentleman-china.com

parquemermoz.store

taxuw.com

sharqiyapaints.com

libraryofkath.com

1949wan.com

synqr.net

bitchessgirls.com

btonu.cfd

coding-bootcamps-16314.com

leadership22-tdh.site

maximsboutique.com

irishsummertruffles.com

sdnaqianchuan.com

uyews.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/424-8-0x0000000004A90000-0x0000000005A90000-memory.dmp	formbook
behavioral2/memory/424-12-0x0000000004A90000-0x0000000005A90000-memory.dmp	formbook
behavioral2/memory/3456-19-0x0000000000670000-0x000000000069F000-memory.dmp	formbook
behavioral2/memory/3456-21-0x0000000000670000-0x000000000069F000-memory.dmp	formbook

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3784-2-0x00000000029F0000-0x00000000039F0000-memory.dmp	modiloader_stage2

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
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

PI and payment confirmed pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rcgggpmy = "C:\\Users\\Public\\Rcgggpmy.url"	PI and payment confirmed pdf.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SndVol.exemstsc.exe

description	pid	process	target process
PID 424 set thread context of 3172	424	SndVol.exe	Explorer.EXE
PID 3456 set thread context of 3172	3456	mstsc.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	29	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	31	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 54 IoCs

Processes:

PI and payment confirmed pdf.exeSndVol.exemstsc.exe

pid	process
3784	PI and payment confirmed pdf.exe
3784	PI and payment confirmed pdf.exe
424	SndVol.exe
424	SndVol.exe
424	SndVol.exe
424	SndVol.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3172 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

SndVol.exemstsc.exe

pid process

424 SndVol.exe
424 SndVol.exe
424 SndVol.exe
3456 mstsc.exe
3456 mstsc.exe
3456 mstsc.exe
3456 mstsc.exe

pid	process
3172	Explorer.EXE

pid	process
424	SndVol.exe
424	SndVol.exe
424	SndVol.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe
3456	mstsc.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

Processes:

SndVol.exeExplorer.EXEmstsc.exe

description	pid	process
Token: SeDebugPrivilege	424	SndVol.exe
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeDebugPrivilege	3456	mstsc.exe
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

SndVol.exe

pid process

424 SndVol.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

SndVol.exe

pid process

424 SndVol.exe
424 SndVol.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3172 Explorer.EXE

pid	process
424	SndVol.exe

pid	process
424	SndVol.exe
424	SndVol.exe

pid	process
3172	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PI and payment confirmed pdf.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 3784 wrote to memory of 424	3784	PI and payment confirmed pdf.exe	SndVol.exe
PID 3784 wrote to memory of 424	3784	PI and payment confirmed pdf.exe	SndVol.exe
PID 3784 wrote to memory of 424	3784	PI and payment confirmed pdf.exe	SndVol.exe
PID 3784 wrote to memory of 424	3784	PI and payment confirmed pdf.exe	SndVol.exe
PID 3172 wrote to memory of 3456	3172	Explorer.EXE	mstsc.exe
PID 3172 wrote to memory of 3456	3172	Explorer.EXE	mstsc.exe
PID 3172 wrote to memory of 3456	3172	Explorer.EXE	mstsc.exe
PID 3456 wrote to memory of 4176	3456	mstsc.exe	cmd.exe
PID 3456 wrote to memory of 4176	3456	mstsc.exe	cmd.exe
PID 3456 wrote to memory of 4176	3456	mstsc.exe	cmd.exe
PID 3456 wrote to memory of 1712	3456	mstsc.exe	Firefox.exe
PID 3456 wrote to memory of 1712	3456	mstsc.exe	Firefox.exe
PID 3456 wrote to memory of 1712	3456	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3172

C:\Users\Admin\AppData\Local\Temp\PI and payment confirmed pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI and payment confirmed pdf.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:424

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.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:3456

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4176

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1712

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologim.jpeg
Filesize
78KB

MD5
78abbb49938b2e96e26deb16993740dc

SHA1
abf3cf03b28a27bda05f0023ce57cb43e45f2735

SHA256
649a8a16df246b6e616cec4a0a353f0b9d9ac06624db2c9d4f1b064fb829443e

SHA512
d84ef3513ce0ddd3181d54465f65a55676efe6d2a982e0ece7d20ff49b6704a1e0c8dc33755c8e483253346536d06d6d57144713f816f319097e18f7337325e2

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/424-8-0x0000000004A90000-0x0000000005A90000-memory.dmp

Filesize
16.0MB

Download
memory/424-10-0x0000000016DC0000-0x000000001710A000-memory.dmp

Filesize
3.3MB

Download
memory/424-12-0x0000000004A90000-0x0000000005A90000-memory.dmp

Filesize
16.0MB

Download
memory/424-13-0x0000000016D70000-0x0000000016D84000-memory.dmp

Filesize
80KB

Download
memory/3172-39-0x0000000006AC0000-0x0000000006B63000-memory.dmp

Filesize
652KB

Download
memory/3172-14-0x0000000007F50000-0x00000000080D8000-memory.dmp

Filesize
1.5MB

Download
memory/3172-42-0x0000000006AC0000-0x0000000006B63000-memory.dmp

Filesize
652KB

Download
memory/3172-38-0x0000000006AC0000-0x0000000006B63000-memory.dmp

Filesize
652KB

Download
memory/3456-21-0x0000000000670000-0x000000000069F000-memory.dmp

Filesize
188KB

Download
memory/3456-15-0x0000000000230000-0x000000000036A000-memory.dmp

Filesize
1.2MB

Download
memory/3456-37-0x00000000023C0000-0x0000000002453000-memory.dmp

Filesize
588KB

Download
memory/3456-20-0x0000000002680000-0x00000000029CA000-memory.dmp

Filesize
3.3MB

Download
memory/3456-19-0x0000000000670000-0x000000000069F000-memory.dmp

Filesize
188KB

Download
memory/3456-18-0x0000000000230000-0x000000000036A000-memory.dmp

Filesize
1.2MB

Download
memory/3784-0-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/3784-5-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/3784-4-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/3784-2-0x00000000029F0000-0x00000000039F0000-memory.dmp

Filesize
16.0MB

Download
memory/3784-1-0x00000000029F0000-0x00000000039F0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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