formbook | 5965d771551e261280e191116d9ed9aeae23eefea54753f2a23792df5e315b02

Analysis

max time kernel
136s
max time network
131s
platform
windows7_x64
resource
win7v20210408
submitted
05-05-2021 09:50

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General

Target

IMAGE-20210505-2001902818921.exe
Size

746KB
MD5

ca14ee6f98ab550e2e1c44f533302d07
SHA1

66304f4bcc82214ee9cdcfee76f3769be868ddee
SHA256

5965d771551e261280e191116d9ed9aeae23eefea54753f2a23792df5e315b02
SHA512

93eb40379e3ade148bff54bda92c8cd70ad887354ccc5af322dc98cc0661de881e6f6353762dc44f92a35ab1c62b799294d9cf1aae85958c5fdb58d1cfac123c

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

http://www.merckcbd.com/dei5/

Decoy

studiomullerphoto.com

reallionairewear.com

dogsalondoggy-tail.com

excelmache.net

bigdiscounters.com

7986799.com

ignition.guru

xiaoxu.info

jpinpd.com

solpool.info

uchooswrewards.com

everestengineeringworks.com

qianglongzhipin.com

deepimper-325.com

appliedrate.com

radsazemehr.com

vivabematividadesfisicas.com

capacitalo.com

somecore.com

listingclass.net

Signatures

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

Formbook Payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1536-81-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

Processes:

IMAGE-20210505-2001902818921.exe

description pid process target process

PID 1824 set thread context of 1536 1824 IMAGE-20210505-2001902818921.exe IMAGE-20210505-2001902818921.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

316 schtasks.exe

description	pid	process	target process
PID 1824 set thread context of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe

pid	process
316	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

IMAGE-20210505-2001902818921.exepowershell.exepowershell.exeIMAGE-20210505-2001902818921.exepowershell.exe

pid	process
1824	IMAGE-20210505-2001902818921.exe
968	powershell.exe
1904	powershell.exe
1536	IMAGE-20210505-2001902818921.exe
1776	powershell.exe
1904	powershell.exe
1776	powershell.exe
968	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exeIMAGE-20210505-2001902818921.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	968	powershell.exe
Token: SeDebugPrivilege	1904	powershell.exe
Token: SeDebugPrivilege	1824	IMAGE-20210505-2001902818921.exe
Token: SeDebugPrivilege	1776	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

IMAGE-20210505-2001902818921.exe

description	pid	process	target process
PID 1824 wrote to memory of 1904	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1904	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1904	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1904	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 968	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 968	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 968	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 968	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 316	1824	IMAGE-20210505-2001902818921.exe	schtasks.exe
PID 1824 wrote to memory of 316	1824	IMAGE-20210505-2001902818921.exe	schtasks.exe
PID 1824 wrote to memory of 316	1824	IMAGE-20210505-2001902818921.exe	schtasks.exe
PID 1824 wrote to memory of 316	1824	IMAGE-20210505-2001902818921.exe	schtasks.exe
PID 1824 wrote to memory of 1776	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1776	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1776	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1776	1824	IMAGE-20210505-2001902818921.exe	powershell.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe
PID 1824 wrote to memory of 1536	1824	IMAGE-20210505-2001902818921.exe	IMAGE-20210505-2001902818921.exe

C:\Users\Admin\AppData\Local\Temp\IMAGE-20210505-2001902818921.exe
"C:\Users\Admin\AppData\Local\Temp\IMAGE-20210505-2001902818921.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IMAGE-20210505-2001902818921.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1904

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AJWuOzen.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:968

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AJWuOzen" /XML "C:\Users\Admin\AppData\Local\Temp\tmp73F8.tmp"
2⤵
- Creates scheduled task(s)
PID:316

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AJWuOzen.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1776

C:\Users\Admin\AppData\Local\Temp\IMAGE-20210505-2001902818921.exe
"C:\Users\Admin\AppData\Local\Temp\IMAGE-20210505-2001902818921.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1536

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_10a2719f-ab19-452c-9537-375fecbe5f96
MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1abda922-9e0e-4200-89d0-60796083afcc
MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_40cad81f-3592-4cf2-a36e-09567e772717
MD5
354b8209f647a42e2ce36d8cf326cc92

SHA1
98c3117f797df69935f8b09fc9e95accfe3d8346

SHA256
feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

SHA512
420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_60554f64-a36e-4439-8748-76f202d7cb75
MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6ccb18ff-7a22-469e-90e7-ccc861e1432b
MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7bc5ca8a-50eb-4a28-856a-31595e01418a
MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_99a6671d-b95b-4add-acf9-fba2f1379156
MD5
7f79b990cb5ed648f9e583fe35527aa7

SHA1
71b177b48c8bd745ef02c2affad79ca222da7c33

SHA256
080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

SHA512
20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_b81f6e62-4824-4d7a-b559-e54ee3cdb52a
MD5
d89968acfbd0cd60b51df04860d99896

SHA1
b3c29916ccb81ce98f95bbf3aa8a73de16298b29

SHA256
1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

SHA512
b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bd47eb21-a96b-4ccd-99d7-0d9f3f6c10b6
MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c9b427a0-6073-4eb8-9b09-f8e4712d7ab5
MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_d7abc7d8-1ede-40eb-bfa4-9284795594d2
MD5
a70ee38af4bb2b5ed3eeb7cbd1a12fa3

SHA1
81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

SHA256
dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

SHA512
8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
f1111cbbbcf12bc122eda0fc92b32571

SHA1
c6689eb6d4f09a3e4db36ef7827ac73b8e05cf7e

SHA256
8fcb255cd3a3f1644acbe1800a1420151d35fde399ffa1d4484a56bd77645136

SHA512
b965221ef57f37670f03a6e0d1c92bfaac5149715b6fae0ad750b4b2aba20fcaa6b2ba85298d4240cf3a5334cbd1d6e681a697a4d51360000a61910c0c3df8ed

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
9ff7ff8ea0a9b8b4434bba9b2232e50b

SHA1
4cb5ee31031773d3312862902db091932f7cd1d4

SHA256
1018bc929807d2d960bc3e265e4461f93e96f800811343fd3dc0f656c0a6b3a0

SHA512
b7ced18bfda6f8bd31600ab3e605a0c802173bd2f57663b5fc2253aefb5388efc8e6c1911da5ddac348c08550a2048137ec21ee9164eb8992f63392dac4a0ab1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
47626143158e8f440e229a64ea8afdfa

SHA1
e68187bbab79103df88449afe646d56711fce2a9

SHA256
11e4ad802bc651a0bae612c48be945eb0e77192a465955e88705e8fab74346d5

SHA512
7323fcb9e2039dfd205ae3ec7c7164f5d52568276d460960317ab0c4c61d3bf2918ed63246eb5a5150a7f0a8af6b5bb3a2a06d0d616c2671adb612d830624695

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C:\Users\Admin\AppData\Local\Temp\tmp73F8.tmp
MD5
c09ce58a20c7416440477118575b0f5d

SHA1
2d821c968a5bdbdd99e1ac8c86f63da1daf72980

SHA256
2ba0de775ea56c368f63241fad735902ac39d242c36280e63a005c9b8b02a79d

SHA512
9d7467f446ad719403a7e1f132eb608bfd85eb4ad357682eb455afdf48f40afe962e314a52f0b7883ec5af42e7a3a26ae1a8cc9814eb6e09e4b7c661bb007085

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
debe3ee5108477831588be039cb2abd9

SHA1
4e43d42f01c7c21703dceb0a0db3846da0b9d74e

SHA256
4614c011a74f80a9b453ed71dcebf49819d62fd867c67bd1d4df773a302f4a7d

SHA512
b5efe391cd015c478ec5a6ceb432135564347b56616da5538a3dfba64fbec07e0ff3f5781d55ed2bbd992a8a2afabc8e41a4e10d39209fdca69930af94940fde

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
debe3ee5108477831588be039cb2abd9

SHA1
4e43d42f01c7c21703dceb0a0db3846da0b9d74e

SHA256
4614c011a74f80a9b453ed71dcebf49819d62fd867c67bd1d4df773a302f4a7d

SHA512
b5efe391cd015c478ec5a6ceb432135564347b56616da5538a3dfba64fbec07e0ff3f5781d55ed2bbd992a8a2afabc8e41a4e10d39209fdca69930af94940fde

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memory/316-68-0x0000000000000000-mapping.dmp

Download
memory/968-71-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/968-94-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/968-74-0x0000000004980000-0x0000000004981000-memory.dmp

Filesize
4KB

Download
memory/968-67-0x0000000000000000-mapping.dmp

Download
memory/1536-82-0x000000000041ECD0-mapping.dmp

Download
memory/1536-90-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/1536-81-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1776-91-0x00000000026A0000-0x00000000026A1000-memory.dmp

Filesize
4KB

Download
memory/1776-80-0x0000000000000000-mapping.dmp

Download
memory/1776-88-0x0000000004A40000-0x0000000004A41000-memory.dmp

Filesize
4KB

Download
memory/1776-89-0x0000000004A42000-0x0000000004A43000-memory.dmp

Filesize
4KB

Download
memory/1824-64-0x0000000000EC0000-0x0000000000F28000-memory.dmp

Filesize
416KB

Download
memory/1824-63-0x0000000005020000-0x00000000050CD000-memory.dmp

Filesize
692KB

Download
memory/1824-62-0x0000000000220000-0x000000000022E000-memory.dmp

Filesize
56KB

Download
memory/1824-61-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1824-59-0x00000000012C0000-0x00000000012C1000-memory.dmp

Filesize
4KB

Download
memory/1904-104-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/1904-136-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/1904-135-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/1904-120-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/1904-76-0x0000000001F90000-0x0000000002BDA000-memory.dmp

Filesize
12.3MB

Download
memory/1904-66-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1904-65-0x0000000000000000-mapping.dmp

Download
memory/1904-113-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/1904-106-0x0000000005860000-0x0000000005861000-memory.dmp

Filesize
4KB

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memory/1904-105-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

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memory/1904-99-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

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