MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035. 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 3 File information Comments
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SHA256 hash: a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035
SHA3-384 hash: 142dab4bae07cfa3744f2011d82e47c405b476d5168d63da09cf61471e6772550a2e7ae3b0f3f5ae12b66c8e9277348d
SHA1 hash: 353192974e4f523bdcb472478e5a652e194c6481
MD5 hash: 9d9f2d5ba71372d4bbd85a9088ba7bc7
humanhash: winner-happy-lithium-wyoming
File name:uiza7XkNGQPRQvb.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:709'632 bytes
First seen:2021-07-22 06:07:27 UTC
Last seen:2021-07-22 13:01:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:kTwHcxzSat9dTVv3NMHXE6544AhwFsyaUVKnp:swH4zhiF54izahp
Threatray 6'905 similar samples on MalwareBazaar
TLSH T136E4D074A31BAB04DC3887FC1C25915127FAB81EA67DC63C3E58B0BC7DB36A856E1611
dhash icon 95355959585d5907 (2 x AgentTesla, 1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
uiza7XkNGQPRQvb.exe
Verdict:
Malicious activity
Analysis date:
2021-07-22 06:09:24 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/8534fc88-0f26-4ac1-8ccc-9742c0ff57a0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/173224/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.UNOFFICIAL
Create hunting rule

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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3630ec19-c269-41b6-a92a-3282783e0673
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/819945
Signature
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 452356 Sample: uiza7XkNGQPRQvb.exe Startdate: 22/07/2021 Architecture: WINDOWS Score: 100 33 www.sex-shop.life 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 4 other signatures 2->47 10 uiza7XkNGQPRQvb.exe 3 2->10         started        signatures3 process4 file5 31 C:\Users\user\...\uiza7XkNGQPRQvb.exe.log, ASCII 10->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 10->57 59 Injects a PE file into a foreign processes 10->59 14 uiza7XkNGQPRQvb.exe 10->14         started        17 uiza7XkNGQPRQvb.exe 10->17         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 Queues an APC in another process (thread injection) 14->67 19 WWAHost.exe 14->19         started        22 explorer.exe 14->22 injected 25 autofmt.exe 14->25         started        process9 dnsIp10 49 Modifies the context of a thread in another process (thread injection) 19->49 51 Maps a DLL or memory area into another process 19->51 53 Tries to detect virtualization through RDTSC time measurements 19->53 27 cmd.exe 1 19->27         started        35 www.mysiniar.com 37.34.60.195, 49738, 80 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 22->35 37 www.slxxxhub.com 22->37 39 5 other IPs or domains 22->39 55 System process connects to network (likely due to code injection or exploit) 22->55 signatures11 process12 process13 29 conhost.exe 27->29         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-22 02:40:52 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uyljsn6iokxpypy6lqj6idyf3hfqzo5dufsjb4juxaili4bhwa2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2d3642f2c997cdd1a84d283738cd6d09f321f681dbc26fab6cca262d59401e20
Formbook
5397f0168be76c7e5efee936d341eb359b9015af5e77631129dc0664105e9259
Formbook
54ab4a1cdce2eb6cac3d05ca5eb317a247a6b5e9164d8c1067f1601953ec8729
Formbook
8ea636d851faf7ce0769fbbe7856659d0eb6638353df90e0c93f461ac3a932be
Formbook
91f157317f4b73121bcb06400904d5e9eff6461ea6495804878aa3c9b2966dc8
Formbook
a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97
Formbook
cd292d4cdb5ff8f2de087a09de2a152722d910f1df7ce7b65e6480be9ae77fdf
Formbook
+ 6'895 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210722-pxalea6csx/
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/ca3053ef-3110-423d-8dfa-eaf46b9be786/
Parent samples :
a62281360a594e22783fb5dfc0e34645726b22df9ae0939b56a5b41e51289f97
91f157317f4b73121bcb06400904d5e9eff6461ea6495804878aa3c9b2966dc8
2d3642f2c997cdd1a84d283738cd6d09f321f681dbc26fab6cca262d59401e20
a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035
18f4cf60cabec371c21e141ab1e15754654351ba4bfd85ae717f5c760f3c102a
3f9a8485314c2b666caf0a1a729a96cb974780f331ea9baa0c03e7f02035cf05
SH256 hash:
70bfe0bef9290d8bab30067b086ed5f8822490f13ee87e7344a37ff2846cbcb6
MD5 hash:
ed85e4d0b211a8f8d7e82b6a535a9d51
SHA1 hash:
a1606fee559a3f42d095d4838bcae91b5dcd84cb
Link:
https://www.unpac.me/results/ca3053ef-3110-423d-8dfa-eaf46b9be786/
SH256 hash:
98e9216907ce20148984b3a4447d68707c36fa0ab53e7fc518b9c51eb52ca02b
MD5 hash:
377fe283f1fb7d0b83021f859a769f35
SHA1 hash:
795c72a995e36c47153727d33c10c339742654f1
Link:
https://www.unpac.me/results/ca3053ef-3110-423d-8dfa-eaf46b9be786/
SH256 hash:
83d9e44d9a311ea6fdbcbd09fdc816a2067806dcacf24beb5ee786191b1a3ea1
MD5 hash:
b1a7b752b6638ee03cffe5a1dde9213e
SHA1 hash:
52d215a173d2f293990f8c12fc7f4a86330a29cb
Link:
https://www.unpac.me/results/ca3053ef-3110-423d-8dfa-eaf46b9be786/
SH256 hash:
a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035
MD5 hash:
9d9f2d5ba71372d4bbd85a9088ba7bc7
SHA1 hash:
353192974e4f523bdcb472478e5a652e194c6481
Link:
https://www.unpac.me/results/ca3053ef-3110-423d-8dfa-eaf46b9be786/
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/a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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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.

Malspam

Formbook

Executable exe a6169937c872aefc3f1e5c13e40f05d9cb0cbba3a16490f134b810b47027b035

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/173224/

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