formbook | 892386e40db2d9d22e9fe3ddd47f369e6f68757c68aa98ada9c74a346046eac9

General

Target

shipping docs.exe
Size

850KB
MD5

e1666ef4566ba59ac9cb52fce5bf3438
SHA1

4bd7d742bb83a86046422029b1fce728650be25d
SHA256

892386e40db2d9d22e9fe3ddd47f369e6f68757c68aa98ada9c74a346046eac9
SHA512

c58018a859f0370503c672754893bf272511cafbeb9c1d0894ba7a19055d207ec8e83b57abeac6e578d0deb0db7aa9f49d24115793d60bc263abd91a6cc1fe8c

Score

10^/10

formbook xloader gfv7 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

gfv7

Decoy

hd4AZDZ3XeSkZ9w0NRn2+JU=

6iAxmGKdumxFEgwp

jM6QcxNUSeCKaUdvvh3g9mffhosQ

d4CC0LS0DjTJS8FdXqd3soM=

S1LPlXEIJY52Og==

doeO7AimsF0NEvFgnIV5

W2TlzH/byHtUU3B7tw==

Y2RAbyZjex2qj6GQv4Q=

ftoOsCpZdfmALQ==

4kqL8v/6rDj8Ohs/wAjkb0gD5Gfiww==

8mVs/AkvwLnIWp4=

yfqAazgHioT8b9yHSKpLDtgY

EyWD5F+Wu3L0xq/VJXgdlnFvBDdUz5WM

jn9ty+pdRNdtcDhJ5k8nwZofm4EJ

s9XVNv4/aRDBUx4w

+vHFE7Fw1rnIWp4=

wC395Yvi6G/3yoWRGW1USxzshi3Dyw==

jcbufIN91gHAUK1RYUMYIdyqpDlUz5WM

iIyoIvZNXwPNmBlBxGk6+A==

C/hTD8h/KWLiMW4Mt/joXyz23Q==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4888-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/4888-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/4024-144-0x0000000001040000-0x000000000106C000-memory.dmp	xloader
behavioral2/memory/4024-149-0x0000000001040000-0x000000000106C000-memory.dmp	xloader

Executes dropped EXE 1 IoCs

Processes:

igfxqzm4fb.exe

pid process

3984 igfxqzm4fb.exe

pid	process
3984	igfxqzm4fb.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

shipping docs.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	shipping docs.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Z0HD8JHHUL = "C:\\Program Files (x86)\\H6lcl\\igfxqzm4fb.exe"	raserver.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

shipping docs.exeshipping docs.exeraserver.exe

description	pid	process	target process
PID 4028 set thread context of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4888 set thread context of 2684	4888	shipping docs.exe	Explorer.EXE
PID 4024 set thread context of 2684	4024	raserver.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEraserver.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe	raserver.exe
File opened for modification	C:\Program Files (x86)\H6lcl	Explorer.EXE
File created	C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

shipping docs.exeraserver.exe

pid	process
4888	shipping docs.exe
4888	shipping docs.exe
4888	shipping docs.exe
4888	shipping docs.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe
4024	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2684 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

shipping docs.exeraserver.exe

pid process

4888 shipping docs.exe
4888 shipping docs.exe
4888 shipping docs.exe
4024 raserver.exe
4024 raserver.exe
4024 raserver.exe
4024 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shipping docs.exeraserver.exe

description pid process

Token: SeDebugPrivilege 4888 shipping docs.exe
Token: SeDebugPrivilege 4024 raserver.exe

pid	process
2684	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4888	shipping docs.exe
Token: SeDebugPrivilege	4024	raserver.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

shipping docs.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 4028 wrote to memory of 4888	4028	shipping docs.exe	shipping docs.exe
PID 2684 wrote to memory of 4024	2684	Explorer.EXE	raserver.exe
PID 2684 wrote to memory of 4024	2684	Explorer.EXE	raserver.exe
PID 2684 wrote to memory of 4024	2684	Explorer.EXE	raserver.exe
PID 4024 wrote to memory of 4720	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 4720	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 4720	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 2888	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 2888	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 2888	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 3188	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 3188	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 3188	4024	raserver.exe	cmd.exe
PID 4024 wrote to memory of 916	4024	raserver.exe	Firefox.exe
PID 4024 wrote to memory of 916	4024	raserver.exe	Firefox.exe
PID 4024 wrote to memory of 916	4024	raserver.exe	Firefox.exe
PID 2684 wrote to memory of 3984	2684	Explorer.EXE	igfxqzm4fb.exe
PID 2684 wrote to memory of 3984	2684	Explorer.EXE	igfxqzm4fb.exe
PID 2684 wrote to memory of 3984	2684	Explorer.EXE	igfxqzm4fb.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2684

C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
"C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4028

C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4888

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:448

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:624

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:5100

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:616

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:4580

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4024

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
3⤵
PID:4720

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:2888

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:3188

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:916

C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe
"C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe"
2⤵
- Executes dropped EXE
PID:3984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe
Filesize
850KB

MD5
e1666ef4566ba59ac9cb52fce5bf3438

SHA1
4bd7d742bb83a86046422029b1fce728650be25d

SHA256
892386e40db2d9d22e9fe3ddd47f369e6f68757c68aa98ada9c74a346046eac9

SHA512
c58018a859f0370503c672754893bf272511cafbeb9c1d0894ba7a19055d207ec8e83b57abeac6e578d0deb0db7aa9f49d24115793d60bc263abd91a6cc1fe8c

Download Submit
C:\Program Files (x86)\H6lcl\igfxqzm4fb.exe
Filesize
850KB

MD5
e1666ef4566ba59ac9cb52fce5bf3438

SHA1
4bd7d742bb83a86046422029b1fce728650be25d

SHA256
892386e40db2d9d22e9fe3ddd47f369e6f68757c68aa98ada9c74a346046eac9

SHA512
c58018a859f0370503c672754893bf272511cafbeb9c1d0894ba7a19055d207ec8e83b57abeac6e578d0deb0db7aa9f49d24115793d60bc263abd91a6cc1fe8c

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/2684-141-0x00000000082A0000-0x0000000008418000-memory.dmp

Filesize
1.5MB

Download
memory/2684-150-0x0000000008560000-0x0000000008676000-memory.dmp

Filesize
1.1MB

Download
memory/2684-148-0x0000000008560000-0x0000000008676000-memory.dmp

Filesize
1.1MB

Download
memory/2888-151-0x0000000000000000-mapping.dmp

Download
memory/3188-153-0x0000000000000000-mapping.dmp

Download
memory/3984-155-0x0000000000000000-mapping.dmp

Download
memory/4024-149-0x0000000001040000-0x000000000106C000-memory.dmp

Filesize
176KB

Download
memory/4024-147-0x0000000002E90000-0x0000000002F20000-memory.dmp

Filesize
576KB

Download
memory/4024-143-0x00000000004D0000-0x00000000004EF000-memory.dmp

Filesize
124KB

Download
memory/4024-144-0x0000000001040000-0x000000000106C000-memory.dmp

Filesize
176KB

Download
memory/4024-142-0x0000000000000000-mapping.dmp

Download
memory/4024-146-0x0000000002F80000-0x00000000032CA000-memory.dmp

Filesize
3.3MB

Download
memory/4028-134-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/4028-130-0x00000000006C0000-0x000000000079A000-memory.dmp

Filesize
872KB

Download
memory/4028-133-0x0000000005230000-0x00000000052CC000-memory.dmp

Filesize
624KB

Download
memory/4028-132-0x0000000005190000-0x0000000005222000-memory.dmp

Filesize
584KB

Download
memory/4028-131-0x00000000056A0000-0x0000000005C44000-memory.dmp

Filesize
5.6MB

Download
memory/4720-145-0x0000000000000000-mapping.dmp

Download
memory/4888-140-0x0000000001640000-0x0000000001651000-memory.dmp

Filesize
68KB

Download
memory/4888-139-0x0000000001950000-0x0000000001C9A000-memory.dmp

Filesize
3.3MB

Download
memory/4888-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4888-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4888-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads