formbook | 97a6db96fa0467a8cbe068fe3b09b0c03c2be85e2902503464e3af90e4e80af1

General

Target

Advice Ref SCA1Sv2.exe
Size

1.0MB
MD5

36cffbbe00ff9dd2a5c813d43dc2749b
SHA1

80a003e052f3cdc9bd10803882c198684bff8574
SHA256

97a6db96fa0467a8cbe068fe3b09b0c03c2be85e2902503464e3af90e4e80af1
SHA512

b417c23df1a8c0fa2860d59d6886230b4648f66eb4ba269cc2514570a0f8b3bbee4cd653b0543ef3b07a02b6c52c657665303add260b6c1093e277a990ba089e
SSDEEP

12288:WU2EIn2uWBQmER9Ai2flfLO/caYVT/XG4Vcfe+y/qv2q7KqRmZ4dUpkD0bxMMJPc:WRWBQLKNkcfvHcfe+y/qvjG7xMMJ1q

Score

10^/10

formbook 8ch8 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

8ch8

Decoy

EpMcJgRhXLgnbGVS1w==

PT1CWj241lPTuYLqz4cMQug=

iW5zo5XTlCyvPyc0hZ+/Ww==

3TiaoYnZM2R/2Jxzj/YY/wSb

gmIzUUXL9Y9CJH1OhZ+/Ww==

TdhX816H2NfWDDA8zg==

hrO4y8wSaEd20IZmhZ+/Ww==

hpV3JYmIC104sSI=

OO5xgWfn6pzCBp3kOas=

wJJtjXKWWuN0B4D/Zq+h+MJnVA==

cG5OST1xygeTEXTwN+gtU+o=

DEkjtjWwSl04sSI=

4jIoyEKj+0h76T8=

CBgIFRBAneBly2N666Yv0uI=

q7/M5ri8J104sSI=

X3FOWUW6vIeYk2QMLPV/GR/KuJlO71Nn

Pk5Xbmm7K2oM390ILKE=

AJLzkApAgKHYDDA8zg==

Z1BN4jzHtGx8ZiKO2DMnznIiArHLh6E=

1WnEWMU1nd7aSQ==

Signatures

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

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:

Advice Ref SCA1Sv2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Advice Ref SCA1Sv2.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Advice Ref SCA1Sv2.exeAdvice Ref SCA1Sv2.exechkdsk.exe

description	pid	process	target process
PID 3552 set thread context of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 4336 set thread context of 512	4336	Advice Ref SCA1Sv2.exe	Explorer.EXE
PID 3756 set thread context of 512	3756	chkdsk.exe	Explorer.EXE

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

Advice Ref SCA1Sv2.exechkdsk.exe

pid	process
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
4336	Advice Ref SCA1Sv2.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe
3756	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

512 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Advice Ref SCA1Sv2.exechkdsk.exe

pid process

4336 Advice Ref SCA1Sv2.exe
4336 Advice Ref SCA1Sv2.exe
4336 Advice Ref SCA1Sv2.exe
3756 chkdsk.exe
3756 chkdsk.exe
3756 chkdsk.exe
3756 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Advice Ref SCA1Sv2.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 4336 Advice Ref SCA1Sv2.exe
Token: SeDebugPrivilege 3756 chkdsk.exe

pid	process
512	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4336	Advice Ref SCA1Sv2.exe
Token: SeDebugPrivilege	3756	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Advice Ref SCA1Sv2.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 3552 wrote to memory of 4336	3552	Advice Ref SCA1Sv2.exe	Advice Ref SCA1Sv2.exe
PID 512 wrote to memory of 3756	512	Explorer.EXE	chkdsk.exe
PID 512 wrote to memory of 3756	512	Explorer.EXE	chkdsk.exe
PID 512 wrote to memory of 3756	512	Explorer.EXE	chkdsk.exe
PID 3756 wrote to memory of 1088	3756	chkdsk.exe	Firefox.exe
PID 3756 wrote to memory of 1088	3756	chkdsk.exe	Firefox.exe
PID 3756 wrote to memory of 1088	3756	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:512

C:\Users\Admin\AppData\Local\Temp\Advice Ref SCA1Sv2.exe
"C:\Users\Admin\AppData\Local\Temp\Advice Ref SCA1Sv2.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3552

C:\Users\Admin\AppData\Local\Temp\Advice Ref SCA1Sv2.exe
"C:\Users\Admin\AppData\Local\Temp\Advice Ref SCA1Sv2.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4336

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3756

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/512-155-0x0000000003240000-0x00000000032DD000-memory.dmp

Filesize
628KB

Download
memory/512-145-0x0000000008BF0000-0x0000000008D48000-memory.dmp

Filesize
1.3MB

Download
memory/512-153-0x0000000003240000-0x00000000032DD000-memory.dmp

Filesize
628KB

Download
memory/3552-135-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/3552-136-0x0000000009500000-0x000000000959C000-memory.dmp

Filesize
624KB

Download
memory/3552-132-0x0000000000DE0000-0x0000000000EEE000-memory.dmp

Filesize
1.1MB

Download
memory/3552-134-0x0000000005870000-0x0000000005902000-memory.dmp

Filesize
584KB

Download
memory/3552-133-0x0000000005D20000-0x00000000062C4000-memory.dmp

Filesize
5.6MB

Download
memory/3756-149-0x0000000000E20000-0x0000000000E2A000-memory.dmp

Filesize
40KB

Download
memory/3756-154-0x00000000009C0000-0x00000000009ED000-memory.dmp

Filesize
180KB

Download
memory/3756-152-0x0000000001330000-0x00000000013BF000-memory.dmp

Filesize
572KB

Download
memory/3756-151-0x00000000013F0000-0x000000000173A000-memory.dmp

Filesize
3.3MB

Download
memory/3756-146-0x0000000000000000-mapping.dmp

Download
memory/3756-150-0x00000000009C0000-0x00000000009ED000-memory.dmp

Filesize
180KB

Download
memory/4336-137-0x0000000000000000-mapping.dmp

Download
memory/4336-148-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4336-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4336-144-0x0000000000DA0000-0x0000000000DB0000-memory.dmp

Filesize
64KB

Download
memory/4336-143-0x00000000013D0000-0x000000000171A000-memory.dmp

Filesize
3.3MB

Download
memory/4336-141-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4336-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4336-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads