Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20251231-en - resource tags
arch:x64arch:x86image:win11-20251231-enlocale:en-usos:windows11-21h2-x64system - submitted
19/01/2026, 15:10
Behavioral task
behavioral1
Sample
Overdue Invoices.exe
Resource
win10v2004-20251231-en
Behavioral task
behavioral2
Sample
Overdue Invoices.exe
Resource
win11-20251231-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20251231-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20251231-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20251229-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20251231-en
General
- Target Overdue Invoices.exe
- Size 479KB
- Sample260119-sj9evafs2f
- SHA256 ca56faca9cf660826fa63147d03bf21b1ea7221cee4c2fcd6e5bc49266176fef
- MD5 3ddc6875fab1c8465e6c5e5481574720
- SHA1 362e8143c54745ab48184ebee94fd462deb423b1
- SHA512 2cf7302577dacc4eadc85c5ecdc41e8574498bc91ca271989dfba795e31123fa4df1615bd1478ac4ed7d5bc64d5936eab5b789ad188cd579d508aec11b465db6
- SSDEEP 6144:G6dQC6a5KqBFftrh6pIDy6JLqbYgEh3tGOw6GE035XZJ/uvc38OENSarpWJLgjO6:JNBFftF6CDyZREhd8EiXbuRpSar0J0
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
formbook
-
4.1
-
b25f
-
cleverstonebridgeyc.pro
-
f6ef5tp.xyz
-
workwearmart.net
-
tnfihtl.live
-
brinaguide.online
-
antonkreil.com.cn
-
uthn579.xyz
-
a80pxi.com
-
travelmindedmasters.live
-
magmacreativehub.shop
-
kairoloma.com
-
gossipquality.live
-
everlastingvows.pro
-
restoration-experts.net
-
solestia-group.com
-
arur.us
-
christinahays.shop
-
eosbetting.xyz
-
aritza.net
-
kfn25i.top
-
datagrion.net
-
glqva.biz
-
delikatnepierscionki.pl
-
lawn-mower-62644.bond
-
0mxk4ta6.top
-
erc4.mobi
-
bowmend.irish
-
skilllabsindia.com
-
vhjbkc.shop
-
5d7egh8.top
-
silhouettewaxandtan.com
-
xujq099t22o5q496-6zn80c2.work
-
silvervoicedreamtide.skin
-
verdalo.store
-
apartmentsforrenca.bond
-
southernctsecurity.forum
-
sellinglynbrook.homes
-
etterfunction.health
-
1xlhdd.top
-
jplq.net
-
mnpqurl.top
-
ausomelabs.com
-
crratorcontent.club
-
wdan.info
-
italianamericandesign.net
-
mlcoiicl.sbs
-
bsw4sh.top
-
istanbuloenology.click
-
ffbdatxllaeco.website
-
winbetplaza.click
-
tkstores.vip
-
hashowns.xyz
-
tiandichenlong.net
-
agixaxo.top
-
gwpromosuplements.shop
-
sex-trung.net
-
znqkr.live
-
zelani.xyz
-
minecraftplebeus.shop
-
gt155.vip
-
rewardsandbox.xyz
-
anantapro.net
-
fix25ffsrch.club
-
babyloop.pt
-
minetwork.fr
Signatures
- Formbook family
- Formbook payload 3 IoCs
resource yara_rule behavioral2/memory/3372-863-0x0000000000400000-0x0000000001717000-memory.dmp family_formbook behavioral2/memory/3372-867-0x0000000000400000-0x0000000001717000-memory.dmp family_formbook behavioral2/memory/6088-876-0x0000000000B40000-0x0000000000B6F000-memory.dmp family_formbook - Loads dropped DLL 2 IoCs
pid Process 5936 Overdue Invoices.exe 5936 Overdue Invoices.exe - Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 1 drive.google.com 2 drive.google.com - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\mammitis\polybuny.htm Overdue Invoices.exe - Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 3372 Overdue Invoices.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 5936 Overdue Invoices.exe 3372 Overdue Invoices.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3372 set thread context of 3084 3372 Overdue Invoices.exe 51 PID 6088 set thread context of 3084 6088 netsh.exe 51 - Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Fonts\sexchikane.lnk Overdue Invoices.exe File opened for modification C:\Windows\Fonts\selskabstjets\carbethoxy.htm Overdue Invoices.exe File opened for modification C:\Windows\Fonts\sexchikane.lnk Overdue Invoices.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Overdue Invoices.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Overdue Invoices.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious behavior: EnumeratesProcesses 56 IoCs
pid Process 3372 Overdue Invoices.exe 3372 Overdue Invoices.exe 3372 Overdue Invoices.exe 3372 Overdue Invoices.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe 6088 netsh.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3084 Explorer.EXE - Suspicious behavior: MapViewOfSection 6 IoCs
pid Process 5936 Overdue Invoices.exe 3372 Overdue Invoices.exe 3372 Overdue Invoices.exe 3372 Overdue Invoices.exe 6088 netsh.exe 6088 netsh.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3372 Overdue Invoices.exe Token: SeDebugPrivilege 6088 netsh.exe Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE Token: SeShutdownPrivilege 3084 Explorer.EXE Token: SeCreatePagefilePrivilege 3084 Explorer.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5936 wrote to memory of 5996 5936 Overdue Invoices.exe 77 PID 5936 wrote to memory of 3372 5936 Overdue Invoices.exe 78 PID 5936 wrote to memory of 3372 5936 Overdue Invoices.exe 78 PID 3372 wrote to memory of 6076 3372 Overdue Invoices.exe 79 PID 3084 wrote to memory of 6088 3084 Explorer.EXE 80 PID 6088 wrote to memory of 6108 6088 netsh.exe 81
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3084 -
C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5936 -
C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"3⤵PID:5996
-
-
C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3372 -
C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"4⤵PID:6076
-
-
-
-
C:\Windows\SysWOW64\netsh.exe"C:\Windows\SysWOW64\netsh.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6088 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\Overdue Invoices.exe"3⤵
- System Location Discovery: System Language Discovery
PID:6108
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nsa9377.tmp\System.dll
- Size 11KB
- SHA256 ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
- MD5 0063d48afe5a0cdc02833145667b6641
- SHA1 e7eb614805d183ecb1127c62decb1a6be1b4f7a8
- SHA512 71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0
- SSDEEP 192:qPtkiQJr7V9r3HcU17S8g1w5xzWxy6j2V7i77blbTc4U:F7VpNo8gmOyRsVc4
- TLSH T1CB326D5503504AF3E996863C00263BBFAF796A2095F14D53CFA394C0FE2E5C9AD78352
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsa9378.tmp
- Size 33B
- SHA256 0ca259e86b73dc8d2f375e3860b6bf91b78b3680b5b90c262fdd82432492a77a
- MD5 5555876f2521b3ae2424dd9d6ce983aa
- SHA1 5dd9296584980764dc0bebb55e721e6f9aacc86b
- SHA512 71992459867bdb629a697d2f1e750390983fd752fe46f3c753eb0671d8e7498850320145b5662c714229cfcad6f0a2fbffac4c5a6ff40c87a90701bfa69763dd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsa9378.tmp
- Size 10B
- SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
- MD5 9a53fc1d7126c5e7c81bb5c15b15537b
- SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
- SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsa9378.tmp
- Size 17B
- SHA256 67e9b2f9ff46c1d3b647fd5df95b6014021dbcb74a2aa2f5e4fc99c733520545
- MD5 de15696c9e742811f33a76627a5af41a
- SHA1 888fbecc300c1487bc2cc47ccfc562a622d4800f
- SHA512 92f92c15bbf47bf31ea9130261198219b2c703ec6eb62af9e9b80c38639fd23b867752b6daab612f83d75e988c1ec641acf900904272babbfb82a48a51c65254
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 1B
- SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
- MD5 8ce4b16b22b58894aa86c421e8759df3
- SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
- SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 2B
- SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
- MD5 25bc6654798eb508fa0b6343212a74fe
- SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
- SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 4B
- SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
- MD5 cde63b34c142af0a38cbe83791c964f8
- SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
- SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 5B
- SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
- MD5 e2fecc970546c3418917879fe354826c
- SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
- SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 7B
- SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
- MD5 67cfa7364c4cf265b047d87ff2e673ae
- SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
- SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsl95DB.tmp
- Size 9B
- SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
- MD5 2b3884fe02299c565e1c37ee7ef99293
- SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
- SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsm9715.tmp
- Size 3B
- SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
- MD5 4e27f2226785e9abbe046fc592668860
- SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
- SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsm9715.tmp
- Size 8B
- SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
- MD5 c3cb69218b85c3260387fb582cb518dd
- SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
- SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsq950F.tmp
- Size 6B
- SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
- MD5 50484c19f1afdaf3841a0d821ed393d2
- SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
- SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
- MD5 SHA1 SHA512
- Path C:\Windows\Fonts\sexchikane.lnk
- Size 1KB
- SHA256 c969a3ea5460d6b2ee98f03008c4d5aa318c3b2d7a423c170a9474cacbd91875
- MD5 a831ca65f51d69add08c1deb3f1673ad
- SHA1 bac9343f30b77c9f3d23b5f43ca2b0a747ae8508
- SHA512 8fad9345cd3fd20e7aa50e9756ce479499686b17262bb3956eecb8fc8b8ac97f6380c61598a48024dab06fdd42814c19a45d063f3965a6f3a584d08aa4a2e758
- TLSH T1D73193419EE91324D2F6CBB412FA3719DA64B867EE889E0D0000925D2471AA0EDB5F6F
- MD5 SHA1 SHA512 TLSH