MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97
SHA3-384 hash: d8d694b4e831b8efdf0bcfb9a8537be001c4a24bad550b215138abffc3d6c4b3613f61a03dcb3d023c5b234fd0bb06cf
SHA1 hash: 47b2dcfae34251772a5dbde9e381cceaf80063e9
MD5 hash: 9e2f228029738210cb89504393113f02
humanhash: aspen-august-music-cola
File name:ULnsMhkLMmFISmk.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:808'960 bytes
First seen:2021-07-14 05:56:48 UTC
Last seen:2021-07-14 06:47:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:tl55FbrNls9XOd4+QCd88G16O8c0Tz0vXrmUJSVxgbZvU6cYRUjRRFnfiwxJ9Q1E:tlhzKg2XKxgbZIYRqRFnXxJ9Q1QM4B
Threatray 6'404 similar samples on MalwareBazaar
TLSH T115057C6823FE6709F637FF316FA0A6445FA67AB95225DC0D2CC4124B4832D81ADA7D31
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ULnsMhkLMmFISmk.exe
Verdict:
Malicious activity
Analysis date:
2021-07-14 06:01:33 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/0b0275fa-df79-420f-9d0f-532ad6620919

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/171553/
Detection(s):
SecuriteInfo.com.Artemis9E2F22802973.5736.11907.UNOFFICIAL
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Result
Verdict:
UNKNOWN
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/92a5c40a-4736-408b-ba24-59aeccc22828
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/816004
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 448415 Sample: ULnsMhkLMmFISmk.exe Startdate: 14/07/2021 Architecture: WINDOWS Score: 100 32 www.cuncunkan.com 2->32 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 6 other signatures 2->50 11 ULnsMhkLMmFISmk.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\ULnsMhkLMmFISmk.exe.log, ASCII 11->30 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 15 ULnsMhkLMmFISmk.exe 11->15         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.cloudrevolutionawards.com 62.233.121.61, 49727, 80 IOMART-ASGB United Kingdom 18->34 36 tfoo682v.xypt.top 120.55.51.124, 80 CNNIC-ALIBABA-CN-NET-APHangzhouAlibabaAdvertisingCoLtd China 18->36 38 8 other IPs or domains 18->38 52 System process connects to network (likely due to code injection or exploit) 18->52 54 Uses ipconfig to lookup or modify the Windows network settings 18->54 22 ipconfig.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.mlfkt.com 22->40 42 tfoo682v.xypt.top 22->42 56 Modifies the context of a thread in another process (thread injection) 22->56 58 Maps a DLL or memory area into another process 22->58 60 Tries to detect virtualization through RDTSC time measurements 22->60 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-07-14 01:00:54 UTC
AV detection:
6 of 46 (13.04%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uyricnqklfhce6b7wxp4by2givzgwiw7tlqjhg2wuw2b4ujit6lq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06590d709bb90096480fb153f62efa1b0738a561014afac367907fa47478079c
Formbook
0b29230d55e89c425c2d9d707a09a6de31ccf4b093f51f6ba1027f0edd313584
Formbook
3aa2d94d36b95a0c15f8050820fc9b1e76916a7d80f352c9d6f5e69911fa7ee2
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5d1870672eff4e2ec6d699d654d5268051f7a56f8ca991fefa538eeef380a89c
Formbook
66c88e666d6a8c03122b527176a9ee1b5b9e24a2aa5a49563e242be179760228
Formbook
94e436107d0fb47e65907647813f1914e8c847f3d6045098e65d1bc56abf280f
Formbook
9998ff1d42d8af0fcc166bea36887eebf182e91d1816853d9f80e6cbbbaf9145
Formbook
bf6ae876108b5fec915d91bd36d3ccd22c8593be29412521c32a4b3f11a757f0
Formbook
d1bdb32250c40ccb8ffa88eb4b976f381a92c14d823c33f366a4d3bef91f4ebf
Formbook
e713f71dced099e1ed7db81eb22b4e79fb412f08ca0915e8cdebb5b6051aee67
Formbook
+ 6'394 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210714-75tvmd74qs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.lapashawhite.com/p596/
Unpacked files
SH256 hash:
bf45980be394b1bd631df30d60ce7858b86aba9e7e9bd39538b696baff7bbfb6
MD5 hash:
f54fb63119a6573a30714db5eea91734
SHA1 hash:
777e72e60104ff6f628d99344b18159b14f387a9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a06b420f-0409-4ead-b3d0-ed0865ac7613/
Parent samples :
a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97
91f157317f4b73121bcb06400904d5e9eff6461ea6495804878aa3c9b2966dc8
2d3642f2c997cdd1a84d283738cd6d09f321f681dbc26fab6cca262d59401e20
a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035
18f4cf60cabec371c21e141ab1e15754654351ba4bfd85ae717f5c760f3c102a
3f9a8485314c2b666caf0a1a729a96cb974780f331ea9baa0c03e7f02035cf05
SH256 hash:
bf89bbb5f92417e7eb69f9b9fe1e5258a42ce7932a12dcda49e985316994b1a6
MD5 hash:
79cd5d1bdffcb253103d2ef4d78888d2
SHA1 hash:
f259d9308a64f85dab40bf0bb3802626e652f020
Link:
https://www.unpac.me/results/a06b420f-0409-4ead-b3d0-ed0865ac7613/
SH256 hash:
5c13c6685671126c16f9ca1b37c183ded549919be7ea24f5682a7f96c2679ebd
MD5 hash:
ab3caf746d5d12a7611d193ec97423c4
SHA1 hash:
8b75dac6b1a6c4f6ec5335289fd412cb405df027
Link:
https://www.unpac.me/results/a06b420f-0409-4ead-b3d0-ed0865ac7613/
SH256 hash:
5f5257e30cfc2caab058013ffc60f90fb8a5d780a14834e1371054290b7658e4
MD5 hash:
b0e14c3526d6623ae9b7b5f5e0efde76
SHA1 hash:
f7d127bff2dfb1100ebd55fdd12dfb7a2b382fdc
Link:
https://www.unpac.me/results/a06b420f-0409-4ead-b3d0-ed0865ac7613/
SH256 hash:
a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97
MD5 hash:
9e2f228029738210cb89504393113f02
SHA1 hash:
47b2dcfae34251772a5dbde9e381cceaf80063e9
Link:
https://www.unpac.me/results/a06b420f-0409-4ead-b3d0-ed0865ac7613/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/171553/

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