formbook | f71f9af9db20ea569e9a4b528898183f182a9d98a6f8668275c55690b5a59c49

General

Target

0098764345678.exe
Size

815KB
MD5

69ec82c711ed34399013471e214a7e64
SHA1

f7fd0fc9eb038b2debf63b0ebec21f48c3fffdd4
SHA256

f71f9af9db20ea569e9a4b528898183f182a9d98a6f8668275c55690b5a59c49
SHA512

c754f373d1ffc031c50ade5a01361db53dded163e050b53fdb050fc450f2342efd40234fbf9bda15fbbc6509f66cd3bbd8fa13e32e436051cd84adce4f31e173

Score

10^/10

formbook xloader zzun loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

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

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1120-137-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1120-143-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/4932-147-0x0000000001290000-0x00000000012BC000-memory.dmp	xloader
behavioral2/memory/4932-150-0x0000000001290000-0x00000000012BC000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	control.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XJOT-6MXCF = "C:\\Program Files (x86)\\Yynj8bfep\\wrvhbpxtrz.exe"	control.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:

0098764345678.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	0098764345678.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:

0098764345678.exe0098764345678.execontrol.exe

description	pid	process	target process
PID 3472 set thread context of 1120	3472	0098764345678.exe	0098764345678.exe
PID 1120 set thread context of 3064	1120	0098764345678.exe	Explorer.EXE
PID 4932 set thread context of 3064	4932	control.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

control.exe

description ioc process

File opened for modification C:\Program Files (x86)\Yynj8bfep\wrvhbpxtrz.exe control.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Yynj8bfep\wrvhbpxtrz.exe	control.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

Processes:

0098764345678.exe0098764345678.execontrol.exe

pid	process
3472	0098764345678.exe
3472	0098764345678.exe
3472	0098764345678.exe
1120	0098764345678.exe
1120	0098764345678.exe
1120	0098764345678.exe
1120	0098764345678.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3064 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

0098764345678.execontrol.exe

pid process

1120 0098764345678.exe
1120 0098764345678.exe
1120 0098764345678.exe
4932 control.exe
4932 control.exe
4932 control.exe
4932 control.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

0098764345678.exe0098764345678.execontrol.exe

description pid process

Token: SeDebugPrivilege 3472 0098764345678.exe
Token: SeDebugPrivilege 1120 0098764345678.exe
Token: SeDebugPrivilege 4932 control.exe

pid	process
3064	Explorer.EXE

pid	process
1120	0098764345678.exe
1120	0098764345678.exe
1120	0098764345678.exe
4932	control.exe
4932	control.exe
4932	control.exe
4932	control.exe

description	pid	process
Token: SeDebugPrivilege	3472	0098764345678.exe
Token: SeDebugPrivilege	1120	0098764345678.exe
Token: SeDebugPrivilege	4932	control.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

0098764345678.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 3472 wrote to memory of 2240	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 2240	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 2240	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3472 wrote to memory of 1120	3472	0098764345678.exe	0098764345678.exe
PID 3064 wrote to memory of 4932	3064	Explorer.EXE	control.exe
PID 3064 wrote to memory of 4932	3064	Explorer.EXE	control.exe
PID 3064 wrote to memory of 4932	3064	Explorer.EXE	control.exe
PID 4932 wrote to memory of 3224	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 3224	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 3224	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 2640	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 2640	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 2640	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 4436	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 4436	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 4436	4932	control.exe	cmd.exe
PID 4932 wrote to memory of 4908	4932	control.exe	Firefox.exe
PID 4932 wrote to memory of 4908	4932	control.exe	Firefox.exe
PID 4932 wrote to memory of 4908	4932	control.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3064

C:\Users\Admin\AppData\Local\Temp\0098764345678.exe
"C:\Users\Admin\AppData\Local\Temp\0098764345678.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3472

C:\Users\Admin\AppData\Local\Temp\0098764345678.exe
"{path}"
3⤵
PID:2240

C:\Users\Admin\AppData\Local\Temp\0098764345678.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1120

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Adds policy 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:4932

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\0098764345678.exe"
3⤵
PID:3224

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:2640

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:4436

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4908

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:\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

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memory/1120-143-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1120-140-0x00000000010D0000-0x00000000010E1000-memory.dmp

Filesize
68KB

Download
memory/1120-136-0x0000000000000000-mapping.dmp

Download
memory/1120-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1120-139-0x00000000010F0000-0x000000000143A000-memory.dmp

Filesize
3.3MB

Download
memory/2240-135-0x0000000000000000-mapping.dmp

Download
memory/2640-152-0x0000000000000000-mapping.dmp

Download
memory/3064-149-0x0000000008CC0000-0x0000000008E18000-memory.dmp

Filesize
1.3MB

Download
memory/3064-151-0x0000000008CC0000-0x0000000008E18000-memory.dmp

Filesize
1.3MB

Download
memory/3064-141-0x0000000008BA0000-0x0000000008CB8000-memory.dmp

Filesize
1.1MB

Download
memory/3224-144-0x0000000000000000-mapping.dmp

Download
memory/3472-134-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/3472-131-0x00000000052D0000-0x0000000005874000-memory.dmp

Filesize
5.6MB

Download
memory/3472-132-0x0000000004DC0000-0x0000000004E52000-memory.dmp

Filesize
584KB

Download
memory/3472-130-0x00000000002F0000-0x00000000003C2000-memory.dmp

Filesize
840KB

Download
memory/3472-133-0x0000000004E60000-0x0000000004EFC000-memory.dmp

Filesize
624KB

Download
memory/4436-154-0x0000000000000000-mapping.dmp

Download
memory/4932-147-0x0000000001290000-0x00000000012BC000-memory.dmp

Filesize
176KB

Download
memory/4932-150-0x0000000001290000-0x00000000012BC000-memory.dmp

Filesize
176KB

Download
memory/4932-148-0x0000000003090000-0x0000000003120000-memory.dmp

Filesize
576KB

Download
memory/4932-146-0x0000000003120000-0x000000000346A000-memory.dmp

Filesize
3.3MB

Download
memory/4932-142-0x0000000000000000-mapping.dmp

Download
memory/4932-145-0x00000000000B0000-0x00000000000D7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads