formbook | bbfb7385cd800a7b207e56e43ab02d45363efd42467e265a19ae8c52d84ef9f6

General

Target

altek inquiry_06122022.exe
Size

240KB
MD5

57e28993ff25e296f1671cf08842bc72
SHA1

789a67ffbbfbdbd722371580a26f6bb39f86124f
SHA256

ef183500f8b2a320013adb7f7594aaf7562d43cfd17026f8c7a4cd26a243965a
SHA512

76820c62bb5f5ce2cbfcf98aaa8b6f2d1c3acb28aeb972b7039ce63e4bb0072867425477bf80ae09c4a11c1c14257d94a40d666aec782f01c4781ec1235d046c
SSDEEP

6144:xBnYpliv3Ux2/jeM5C4fR99KWb8YPo9hUCCkPBByiL:UpEv3yxKFPBkP3yiL

Score

10^/10

formbook m5oe rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

m5oe

Decoy

HdR8hG6r12hBYuHY4zv6YeeFPQ==

tD1V9gswYvgQXEGd

1xKtJ1LdqRYMRMC84U1A

MbhjiWb7Lz8z7KIWl3UyUIJwA6Tb

joVB5Xggy2RtE+odsZg=

TrduAIay6Y3SvoIK20xI

pSna7LOsXXwXT/zz3Iow4g==

QnthmO4Qst5gC3sDoA==

eAirzOOgO7SOCenz3Iow4g==

xg0uSbfLTg==

YWQXwyGRzPEHzGrDFE8CBSE=

ujLnfuXoH9dbgHIK20xI

291v0XsGFrYQXEGd

MRvTd/qMuaHpjCM=

X131fLC6VWX4MsvCb2IPjIfq8wlksWfg

Y9Bur8DbgqFt/Yni86MMCCE=

q6RTBmJkmy5pWTmmCCrvmuCDPw==

mQS26DojT+EQXEGd

sjHQ+Kav2Wx9FeodsZg=

JA24UKnTA5re1LhcQaVo/w==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Executes dropped EXE 2 IoCs

Processes:

gnfyjw.exegnfyjw.exe

pid process

1972 gnfyjw.exe
1500 gnfyjw.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:

gnfyjw.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Control Panel\International\Geo\Nation gnfyjw.exe
Loads dropped DLL 3 IoCs

Processes:

altek inquiry_06122022.exegnfyjw.exechkdsk.exe

pid process

2016 altek inquiry_06122022.exe
1972 gnfyjw.exe
776 chkdsk.exe

pid	process
1972	gnfyjw.exe
1500	gnfyjw.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Control Panel\International\Geo\Nation	gnfyjw.exe

pid	process
2016	altek inquiry_06122022.exe
1972	gnfyjw.exe
776	chkdsk.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

gnfyjw.exegnfyjw.exechkdsk.exe

description	pid	process	target process
PID 1972 set thread context of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1500 set thread context of 1212	1500	gnfyjw.exe	Explorer.EXE
PID 1500 set thread context of 1212	1500	gnfyjw.exe	Explorer.EXE
PID 776 set thread context of 1212	776	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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

gnfyjw.exechkdsk.exe

pid	process
1500	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

gnfyjw.exegnfyjw.exechkdsk.exe

pid process

1972 gnfyjw.exe
1500 gnfyjw.exe
1500 gnfyjw.exe
1500 gnfyjw.exe
1500 gnfyjw.exe
776 chkdsk.exe
776 chkdsk.exe
776 chkdsk.exe
776 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

gnfyjw.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1500 gnfyjw.exe
Token: SeDebugPrivilege 776 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE

pid	process
1212	Explorer.EXE

pid	process
1972	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
1500	gnfyjw.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe
776	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1500	gnfyjw.exe
Token: SeDebugPrivilege	776	chkdsk.exe

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

altek inquiry_06122022.exegnfyjw.exegnfyjw.exechkdsk.exe

description	pid	process	target process
PID 2016 wrote to memory of 1972	2016	altek inquiry_06122022.exe	gnfyjw.exe
PID 2016 wrote to memory of 1972	2016	altek inquiry_06122022.exe	gnfyjw.exe
PID 2016 wrote to memory of 1972	2016	altek inquiry_06122022.exe	gnfyjw.exe
PID 2016 wrote to memory of 1972	2016	altek inquiry_06122022.exe	gnfyjw.exe
PID 1972 wrote to memory of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1972 wrote to memory of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1972 wrote to memory of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1972 wrote to memory of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1972 wrote to memory of 1500	1972	gnfyjw.exe	gnfyjw.exe
PID 1500 wrote to memory of 776	1500	gnfyjw.exe	chkdsk.exe
PID 1500 wrote to memory of 776	1500	gnfyjw.exe	chkdsk.exe
PID 1500 wrote to memory of 776	1500	gnfyjw.exe	chkdsk.exe
PID 1500 wrote to memory of 776	1500	gnfyjw.exe	chkdsk.exe
PID 776 wrote to memory of 1036	776	chkdsk.exe	Firefox.exe
PID 776 wrote to memory of 1036	776	chkdsk.exe	Firefox.exe
PID 776 wrote to memory of 1036	776	chkdsk.exe	Firefox.exe
PID 776 wrote to memory of 1036	776	chkdsk.exe	Firefox.exe
PID 776 wrote to memory of 1036	776	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1212

C:\Users\Admin\AppData\Local\Temp\altek inquiry_06122022.exe
"C:\Users\Admin\AppData\Local\Temp\altek inquiry_06122022.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
"C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe" C:\Users\Admin\AppData\Local\Temp\ewfvsnuhhs.yk
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1972

C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
"C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
5⤵
- Loads dropped DLL
- 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:776

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
6⤵
PID:1036

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1552

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ewfvsnuhhs.yk
Filesize
5KB

MD5
cc9e28dede16cfda70a7f5c2286ac096

SHA1
e21dfb2a1424f3907451117e65dc5feae3665fb0

SHA256
a96297e01a5e02d8e01ac0ffde09e15ee37ef5a8947085e4e37aeead7912fb95

SHA512
4e11dacf0073e7b150e58a6110c7ea67be7d15a682c4817de7ba7193fbeda0cb8f875cd4f3bead163e955cef00964b3ee1c25f6f4dff26ad268202d8f1771df3

Download Submit
C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
Filesize
13KB

MD5
bd75ead41fcfd1e05e01dccbab8201ee

SHA1
0d8e4692652a07ba557ac05cf7981d6655054a45

SHA256
949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

SHA512
fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

Download Submit
C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
Filesize
13KB

MD5
bd75ead41fcfd1e05e01dccbab8201ee

SHA1
0d8e4692652a07ba557ac05cf7981d6655054a45

SHA256
949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

SHA512
fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

Download Submit
C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
Filesize
13KB

MD5
bd75ead41fcfd1e05e01dccbab8201ee

SHA1
0d8e4692652a07ba557ac05cf7981d6655054a45

SHA256
949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

SHA512
fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

Download Submit
C:\Users\Admin\AppData\Local\Temp\xaulttvxgxs.z
Filesize
185KB

MD5
2b417f4ae947c108780502ee6d73b7ca

SHA1
0e6440e5b52cc7190af856e4784b7f0bdf6a0963

SHA256
ad93f99bbbeebd3a9d196ae6c9457b9faec9986e268c0341a0720764902e55e9

SHA512
29e8360bdb883416813d1305af43424f81864eceb770f7a7ece73de068924684395b09867db910521b25b3401b25cd3c204295312174e7571c9eda820473e02e

Download Submit
\Users\Admin\AppData\Local\Temp\gnfyjw.exe
Filesize
13KB

MD5
bd75ead41fcfd1e05e01dccbab8201ee

SHA1
0d8e4692652a07ba557ac05cf7981d6655054a45

SHA256
949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

SHA512
fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

Download Submit
\Users\Admin\AppData\Local\Temp\gnfyjw.exe
Filesize
13KB

MD5
bd75ead41fcfd1e05e01dccbab8201ee

SHA1
0d8e4692652a07ba557ac05cf7981d6655054a45

SHA256
949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

SHA512
fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
932KB

MD5
661fd92d4eaeea3740649af5a484d7c8

SHA1
c93f868890fee1475f8ec9e7607e26f5dce67d54

SHA256
58a478f0560ea22c1bc194263f07cf6f3ecfe47d0c8b534a7bba185f28a1141f

SHA512
1fac03c20139fde41d121e0adbd02d127261ce061509996087fc1c80baf2fe0d0f70fed6b83d38a85cfa2e07d038ff809161c7ecce31ec44ac8b89740d3db15d

Download Submit
memory/776-75-0x0000000000200000-0x0000000000207000-memory.dmp

Filesize
28KB

Download
memory/776-74-0x0000000000000000-mapping.dmp

Download
memory/776-80-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/776-78-0x0000000001DF0000-0x0000000001E7F000-memory.dmp

Filesize
572KB

Download
memory/776-77-0x0000000001FC0000-0x00000000022C3000-memory.dmp

Filesize
3.0MB

Download
memory/776-76-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1212-81-0x00000000069E0000-0x0000000006B38000-memory.dmp

Filesize
1.3MB

Download
memory/1212-79-0x00000000069E0000-0x0000000006B38000-memory.dmp

Filesize
1.3MB

Download
memory/1212-69-0x0000000005F10000-0x0000000006074000-memory.dmp

Filesize
1.4MB

Download
memory/1212-71-0x0000000006370000-0x0000000006449000-memory.dmp

Filesize
868KB

Download
memory/1500-73-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1500-72-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-63-0x00000000004012B0-mapping.dmp

Download
memory/1500-70-0x00000000003A0000-0x00000000003B0000-memory.dmp

Filesize
64KB

Download
memory/1500-68-0x00000000000B0000-0x00000000000C0000-memory.dmp

Filesize
64KB

Download
memory/1500-67-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/1500-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-66-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1972-56-0x0000000000000000-mapping.dmp

Download
memory/2016-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads