MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
SHA3-384 hash: 373a45c076867095a35ca6ef4cbd8ec5c4ab34dc349677e8cfe07b733de48b75459da4c3cb5473bf38b92c52bced97d9
SHA1 hash: 879d58fac670b28b82f381d3f032366e8a5d45b2
MD5 hash: f51d187e9d4024f6e10395072a3f6f75
humanhash: undress-potato-artist-robin
File name:efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
Download: download sample
Signature Formbook
Create hunting rule
File size:612'864 bytes
First seen:2023-07-07 10:24:38 UTC
Last seen:2023-07-07 10:38:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ClxOOEsxRUBTEOgQD1LK+trbgNyLQCvmzws/dr7ZK:CG/sxRSEOXK+trbgchvKZ/dr9K
Threatray 3'680 similar samples on MalwareBazaar
TLSH T171D48A3C1CBD2A37C175D6AA8FE48463F550D53F39229A36A4D797948702EA325C323E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
282
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
Verdict:
Malicious activity
Analysis date:
2023-07-07 10:24:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6b109587-3658-43e6-880f-8960a66cf111

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/410479/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67805979.32572.32048.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/64a7e7ff784d6094d91a21bd/reports/28abd8c1-b10e-42c8-8191-d28805fde870/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/757ae5b2-3186-4c0f-ade3-91047231dcd4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1269089
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1269089 Sample: e9AmrlgeNx.exe Startdate: 07/07/2023 Architecture: WINDOWS Score: 100 37 Malicious sample detected (through community Yara rule) 2->37 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 4 other signatures 2->43 7 e9AmrlgeNx.exe 7 2->7         started        11 RUlaeSRZWjT.exe 5 2->11         started        process3 file4 29 C:\Users\user\AppData\...\RUlaeSRZWjT.exe, PE32 7->29 dropped 31 C:\Users\...\RUlaeSRZWjT.exe:Zone.Identifier, ASCII 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmp8390.tmp, XML 7->33 dropped 35 C:\Users\user\AppData\...\e9AmrlgeNx.exe.log, ASCII 7->35 dropped 45 Uses schtasks.exe or at.exe to add and modify task schedules 7->45 47 Adds a directory exclusion to Windows Defender 7->47 13 powershell.exe 21 7->13         started        15 schtasks.exe 1 7->15         started        17 e9AmrlgeNx.exe 7->17         started        49 Multi AV Scanner detection for dropped file 11->49 51 Machine Learning detection for dropped file 11->51 19 schtasks.exe 1 11->19         started        21 RUlaeSRZWjT.exe 11->21         started        signatures5 process6 process7 23 conhost.exe 13->23         started        25 conhost.exe 15->25         started        27 conhost.exe 19->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-06-27 10:40:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56zk24pqs2jjggdlotsrkyknnhcffd5ph56pmcm5oehtnx7fw3ra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
18b6a73808a0524c95b724475d46aca3e42874de551a0fcf7c8d56aff23f105b
Formbook
2f8e9facdf104aa0a763dd40689e81b21b6664fb3b737e8d391d111e2bb38087
Formbook
4400353ebbbd72f1a260b3021c48fa67439ec6accd01ecd27ada202052f27391
Formbook
5527c6e95c67b38151fbbf6f5d18671d56c96f27f66981029c633a413e73d7b0
Formbook
5f6f7213190e70f29facc25878e3a95958f48e78796dd01410a2c633314bf229
Formbook
e1836520ed6edb7fe91462076fdba7e96174e4506e7fd2df69de260199e5c020
Formbook
e2ceee53e039eaca503c58bd2be1b268bfbc1f17a7568e70bdedf5ca8d1bd637
Formbook
e5dbce139ab26dc9f743ca4161894d49adddd7c9bd0f1ac4adf4177aec479b69
Formbook
+ 3'670 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230707-mfylaagd32/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
107dad70e4a2295e8f0eb8411af89416e40f1216300ddc0bfe9c01079e1df2d7
MD5 hash:
987a7cdc1ab0e5e33f0570c4c20d2829
SHA1 hash:
86aedda03fbb52732a9e3f9f76a27620c887f3a8
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
Parent samples :
af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24
86e5af89c88058cd0ed1e94c67bc931727aabcbd6a817776a979bfca282ea488
5bbe0096493e0297f0880810ef5141b5905168ce5e5a11f5e16c7c08a3abfa15
2d9e23f8ac381af2847ddde8454f1cc042b6beaa60e484d01efe7f37effd21c3
084024d4f98c6826dc940424c0eafdc69c92af63f3e0cf2abdf287425a29c36e
efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
SH256 hash:
5412da69bdf73b8ac729f3ffbdd21c439216918cdfb50758cf65b623e575f207
MD5 hash:
2455e742a150d182b9d58e342ac8646b
SHA1 hash:
d082d9f4049222b8fe6ca034134e1c773ee267bb
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
3d23d9443a92723d3fe771198acdcc7d1835b626773c3ae2652f568bd3a0614e
MD5 hash:
f371e575a0a4713f38a2c11dfb1197af
SHA1 hash:
a2ecccda6aad8a2bf8f9051af5b6868726aaf056
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
9d6c73e273a966a4ed1d93350392d965792ddf5ad201bfa28b8adcec2e344db5
MD5 hash:
adac60763fcfe4d5f4ad323046e79500
SHA1 hash:
9ced772a90ddec9fffde8c745225ad289f3f087e
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
107dad70e4a2295e8f0eb8411af89416e40f1216300ddc0bfe9c01079e1df2d7
MD5 hash:
987a7cdc1ab0e5e33f0570c4c20d2829
SHA1 hash:
86aedda03fbb52732a9e3f9f76a27620c887f3a8
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
Parent samples :
af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24
86e5af89c88058cd0ed1e94c67bc931727aabcbd6a817776a979bfca282ea488
5bbe0096493e0297f0880810ef5141b5905168ce5e5a11f5e16c7c08a3abfa15
2d9e23f8ac381af2847ddde8454f1cc042b6beaa60e484d01efe7f37effd21c3
084024d4f98c6826dc940424c0eafdc69c92af63f3e0cf2abdf287425a29c36e
efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
SH256 hash:
5412da69bdf73b8ac729f3ffbdd21c439216918cdfb50758cf65b623e575f207
MD5 hash:
2455e742a150d182b9d58e342ac8646b
SHA1 hash:
d082d9f4049222b8fe6ca034134e1c773ee267bb
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
3d23d9443a92723d3fe771198acdcc7d1835b626773c3ae2652f568bd3a0614e
MD5 hash:
f371e575a0a4713f38a2c11dfb1197af
SHA1 hash:
a2ecccda6aad8a2bf8f9051af5b6868726aaf056
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
9d6c73e273a966a4ed1d93350392d965792ddf5ad201bfa28b8adcec2e344db5
MD5 hash:
adac60763fcfe4d5f4ad323046e79500
SHA1 hash:
9ced772a90ddec9fffde8c745225ad289f3f087e
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
107dad70e4a2295e8f0eb8411af89416e40f1216300ddc0bfe9c01079e1df2d7
MD5 hash:
987a7cdc1ab0e5e33f0570c4c20d2829
SHA1 hash:
86aedda03fbb52732a9e3f9f76a27620c887f3a8
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
Parent samples :
af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24
86e5af89c88058cd0ed1e94c67bc931727aabcbd6a817776a979bfca282ea488
5bbe0096493e0297f0880810ef5141b5905168ce5e5a11f5e16c7c08a3abfa15
2d9e23f8ac381af2847ddde8454f1cc042b6beaa60e484d01efe7f37effd21c3
084024d4f98c6826dc940424c0eafdc69c92af63f3e0cf2abdf287425a29c36e
efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
SH256 hash:
5412da69bdf73b8ac729f3ffbdd21c439216918cdfb50758cf65b623e575f207
MD5 hash:
2455e742a150d182b9d58e342ac8646b
SHA1 hash:
d082d9f4049222b8fe6ca034134e1c773ee267bb
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
3d23d9443a92723d3fe771198acdcc7d1835b626773c3ae2652f568bd3a0614e
MD5 hash:
f371e575a0a4713f38a2c11dfb1197af
SHA1 hash:
a2ecccda6aad8a2bf8f9051af5b6868726aaf056
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
9d6c73e273a966a4ed1d93350392d965792ddf5ad201bfa28b8adcec2e344db5
MD5 hash:
adac60763fcfe4d5f4ad323046e79500
SHA1 hash:
9ced772a90ddec9fffde8c745225ad289f3f087e
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
867c70bd4fb8c0b35a98109c398d54c47d3042dca3e91fad56a4449fca9bbec3
MD5 hash:
ddc8615f9751995ed3950b1ca6977412
SHA1 hash:
62350c8523f0ff5cda8979330237c66c19d27c74
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
SH256 hash:
efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2
MD5 hash:
f51d187e9d4024f6e10395072a3f6f75
SHA1 hash:
879d58fac670b28b82f381d3f032366e8a5d45b2
Link:
https://www.unpac.me/results/3d69e211-95ff-46ea-bb4e-0af1cee1d9d2/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efb2ad71f096/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/efb2ad71f0969293186b74e515614d69c4528faf3f7cf6099d710f36dfe5b6e2

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/410479/

Comments