Overview

overview

10

Static

static

3

ReturnThie....0.exe

windows7-x64

7

ReturnThie....0.exe

windows10-2004-x64

8

$PLUGINSDI...er.dll

windows7-x64

3

$PLUGINSDI...er.dll

windows10-2004-x64

3

$PLUGINSDI...ls.dll

windows7-x64

3

$PLUGINSDI...ls.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...ll.dll

windows7-x64

3

$PLUGINSDI...ll.dll

windows10-2004-x64

3

$PLUGINSDIR/app-64.7z

windows7-x64

7

$PLUGINSDIR/app-64.7z

windows10-2004-x64

8

LICENSES.c...m.html

windows7-x64

3

LICENSES.c...m.html

windows10-2004-x64

3

ReturnThief.exe

windows7-x64

1

ReturnThief.exe

windows10-2004-x64

d3dcompiler_47.dll

windows10-2004-x64

1

ffmpeg.dll

windows7-x64

1

ffmpeg.dll

windows10-2004-x64

1

libEGL.dll

windows7-x64

1

libEGL.dll

windows10-2004-x64

1

libGLESv2.dll

windows7-x64

1

libGLESv2.dll

windows10-2004-x64

1

locales/af.ps1

windows7-x64

3

locales/af.ps1

windows10-2004-x64

3

locales/en-US.pak

windows7-x64

3

locales/en-US.pak

windows10-2004-x64

3

locales/uk.ps1

windows7-x64

3

locales/uk.ps1

windows10-2004-x64

3

resources.pak

windows7-x64

3

resources.pak

windows10-2004-x64

3

resources/app.asar

windows7-x64

3

Sharing

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General

  • Target

    ReturnThief Setup 1.0.0.exe

  • Size

    83.1MB

  • Sample

    241113-yw4m1s1rel

  • MD5

    b2ff937db8ae9dae85203d8ff443d1d5

  • SHA1

    8d0bb2f786c73015f1a830a8aade0df8a3bdcb7c

  • SHA256

    1d9a3c8728d6868857aaa0d0817bcffab975fdaed769b2d70a750972280c8c72

  • SHA512

    e2cb72f696cb04432431f9194be9c966fb635273200ad501ad383873f49f4b9d8594354653640024d63b916e9e75a7f40e0d31a1258f36960ee5e223ea542865

  • SSDEEP

    1572864:fTJ39Kk9MaLcLAeydx32B8ceyIS7nqYdd6hIExeIg6q7BMp:fGk9MaLC//vP7nMxeIg6WMp

Score
10/10
hexoncredential_accessdiscoveryexecutionspywarestealer

Malware Config

Targets

    • Target

      ReturnThief Setup 1.0.0.exe

    • Size

      83.1MB

    • MD5

      b2ff937db8ae9dae85203d8ff443d1d5

    • SHA1

      8d0bb2f786c73015f1a830a8aade0df8a3bdcb7c

    • SHA256

      1d9a3c8728d6868857aaa0d0817bcffab975fdaed769b2d70a750972280c8c72

    • SHA512

      e2cb72f696cb04432431f9194be9c966fb635273200ad501ad383873f49f4b9d8594354653640024d63b916e9e75a7f40e0d31a1258f36960ee5e223ea542865

    • SSDEEP

      1572864:fTJ39Kk9MaLcLAeydx32B8ceyIS7nqYdd6hIExeIg6q7BMp:fGk9MaLC//vP7nMxeIg6WMp

    Score
    8/10
    discoverycredential_accessspywarestealer

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

      credential_accessstealer

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates processes with tasklist

      discovery
    behavioral1behavioral2

    • Target

      $PLUGINSDIR/SpiderBanner.dll

    • Size

      9KB

    • MD5

      17309e33b596ba3a5693b4d3e85cf8d7

    • SHA1

      7d361836cf53df42021c7f2b148aec9458818c01

    • SHA256

      996a259e53ca18b89ec36d038c40148957c978c0fd600a268497d4c92f882a93

    • SHA512

      1abac3ce4f2d5e4a635162e16cf9125e059ba1539f70086c2d71cd00d41a6e2a54d468e6f37792e55a822d7082fb388b8dfecc79b59226bbb047b7d28d44d298

    • SSDEEP

      192:5lkE3uqRI1y7/xcfK4PRef6gQzJyY1rpKlVrw:5lkMBI1y7UKcef6XzJrpKY

    Score
    3/10
    discovery
    behavioral3behavioral4

    • Target

      $PLUGINSDIR/StdUtils.dll

    • Size

      100KB

    • MD5

      c6a6e03f77c313b267498515488c5740

    • SHA1

      3d49fc2784b9450962ed6b82b46e9c3c957d7c15

    • SHA256

      b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

    • SHA512

      9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

    • SSDEEP

      3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

    Score
    3/10
    discovery
    behavioral5behavioral6

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      0d7ad4f45dc6f5aa87f606d0331c6901

    • SHA1

      48df0911f0484cbe2a8cdd5362140b63c41ee457

    • SHA256

      3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    • SHA512

      c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

    • SSDEEP

      192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6

    Score
    3/10
    discovery
    behavioral7behavioral8

    • Target

      $PLUGINSDIR/WinShell.dll

    • Size

      3KB

    • MD5

      1cc7c37b7e0c8cd8bf04b6cc283e1e56

    • SHA1

      0b9519763be6625bd5abce175dcc59c96d100d4c

    • SHA256

      9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

    • SHA512

      7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

    Score
    3/10
    discovery
    behavioral10behavioral9

    • Target

      $PLUGINSDIR/app-64.7z

    • Size

      82.3MB

    • MD5

      cb1ba9cbec946e070330bf6b7ea9fcec

    • SHA1

      7440ce7c460cc6e8bc485be748064cde35f0d178

    • SHA256

      f3712d37b10e45146d0f2e60d7694e1e81339bff472dace653fc1d0b00089783

    • SHA512

      0d31b8d2fe90ff4636a7eda96eac1809a1c88039781cb32c8d6d5b49e93f631287876f68694e238de07dfb23177526c75e369d3d4171ab24e96cfd28506556ae

    • SSDEEP

      1572864:NJ39Kk9MaLcLAeydx32B8ceyIS7nqYdd6hIExeIg6q7BMn:Mk9MaLC//vP7nMxeIg6WMn

    Score
    8/10
    credential_accessdiscoveryspywarestealer

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

      credential_accessstealer

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Enumerates processes with tasklist

      discovery
    behavioral11behavioral12

    • Target

      LICENSES.chromium.html

    • Size

      7.9MB

    • MD5

      8303b3a19888f41062a614cd95b2e2d2

    • SHA1

      a112ee5559c27b01e3114cf10050531cab3d98a6

    • SHA256

      9c088caac76cf5be69e0397d76fe9397017585cffdba327692ff1b3a6c00d68f

    • SHA512

      281b2ecc99502a050ee69e31256dec135e8cb877d1a6ba9f1c975fcfb11c062980ee6061d2368b62f91e392953ae6235dd726a9d98e6efc1302f7ed713099179

    • SSDEEP

      24576:dbTq6T06T5kJWSIRWnBIl70mfT76y6E65606F/HXpErpem:t4scj

    Score
    3/10
    discovery
    behavioral13behavioral14

    • Target

      ReturnThief.exe

    • Size

      154.8MB

    • MD5

      4dac19cb064610e349e61da8d3421ee6

    • SHA1

      7705d91bb1aaa69bd9071c0a15f16fd44fa07fbd

    • SHA256

      337fd4c1abb47d3f3d4fcc9fab412a0d11433d10186a3176f6ee0624e51e9940

    • SHA512

      f71be24bc67c17dd6499355c4505f565930a9f55d02203cbc151de13cd8f2b806bdfe27f10d21207d838e63bdb4c7f1f9c5d8fb356666fda23054abcb2916edc

    • SSDEEP

      1572864:XTmw0ciLNpDPuAvHxJLkY2O6Ea3f9kwZXeT6EivLp1vUAtdjtZn+f4FnIvGaC9dU:ov6E70+Mk

    Score
    10/10
    hexoncredential_accessdiscoveryspywarestealer

    • Hexon family

      hexon

    • Hexon stealer

      Hexon is a stealer written in Electron NodeJS.

      stealerhexon

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

      credential_accessstealer

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Enumerates processes with tasklist

      discovery
    behavioral15behavioral16

    • Target

      d3dcompiler_47.dll

    • Size

      4.7MB

    • MD5

      2191e768cc2e19009dad20dc999135a3

    • SHA1

      f49a46ba0e954e657aaed1c9019a53d194272b6a

    • SHA256

      7353f25dc5cf84d09894e3e0461cef0e56799adbc617fce37620ca67240b547d

    • SHA512

      5adcb00162f284c16ec78016d301fc11559dd0a781ffbeff822db22efbed168b11d7e5586ea82388e9503b0c7d3740cf2a08e243877f5319202491c8a641c970

    • SSDEEP

      49152:KCZnRO4XyM53Rkq4ypQqdoRpmruVNYvkaRwvhiD0N+YEzI4og/RfzHLeHTRhFRNc:xG2QCwmHPnog/pzHAo/A6l

    Score
    1/10
    behavioral17

    • Target

      ffmpeg.dll

    • Size

      2.7MB

    • MD5

      a007299c49fa50aeff594655859780ae

    • SHA1

      d202f1f617023763a0e9418878e8ecac96be9fd4

    • SHA256

      b78f0036621ad1d5833289f2ad509963ef78f1a89a3c7df0f1370fd2d35a2804

    • SHA512

      444c4baa1e1d941bd04f78184cec519c6eb53a83fbc3aa3ea30522bffc9ecde73ebe7b910c1a37c345429298ada3c0ffcb3e3849e21b2009487b5cd1a02cb2a9

    • SSDEEP

      49152:WdTodIrn9wbFV6Ps2cA7SJ/W1C1fLPzhkE7hjU7gUxGJwDw3lCQTQY/N3lzl3heH:C79fe/CmP6w3lXQYef/3

    Score
    1/10
    behavioral18behavioral19

    • Target

      libEGL.dll

    • Size

      469KB

    • MD5

      ca5bb0794b7700601e9438283d458665

    • SHA1

      7fcf090b19820b9450937be800575c526448b581

    • SHA256

      4a8be3b4d9fe790efdce38cff8f312a2f8276908d6703e0c6c37818e217cf1e3

    • SHA512

      36ebab858fe7e014837548575389e7df2e86676888e4a9039c736d0f2e6463102e68989b794d949ddb16d9bcce43ce55737fcf2a4b09b1667bf968a9540e9f32

    • SSDEEP

      6144:afuE2DT96QHENooSYBjLkt4sasMHemPwlrX+nZiML7hn:afuE2DbkGoS2jLku/wWUiNn

    Score
    1/10
    behavioral20behavioral21

    • Target

      libGLESv2.dll

    • Size

      7.3MB

    • MD5

      05b585464f18fe0e3bddb20527697d66

    • SHA1

      8bcec2f0b409afa9ff054e25f3ce85eb9bd50010

    • SHA256

      0bb7c6c08b569c1d2de90a40e6c142591e160a7c6cb15d21807f3404a48c4287

    • SHA512

      f680ab9c3070f443c7359bb3f0c2032f5c58c88c7823e4592e8212ce8815ea5f463c86df113f5320944c62d3cb4e8d45b9b4dcaadccc1ac9bf203ae4bb52083c

    • SSDEEP

      98304:WJTPQhRQ4t2fzqJ3IZ155Rl5F/tpcAgsOMN:Wm2foIzRJosr

    Score
    1/10
    behavioral22behavioral23

    • Target

      locales/af.pak

    • Size

      368KB

    • MD5

      7e51349edc7e6aed122bfa00970fab80

    • SHA1

      eb6df68501ecce2090e1af5837b5f15ac3a775eb

    • SHA256

      f528e698b164283872f76df2233a47d7d41e1aba980ce39f6b078e577fd14c97

    • SHA512

      69da19053eb95eef7ab2a2d3f52ca765777bdf976e5862e8cebbaa1d1ce84a7743f50695a3e82a296b2f610475abb256844b6b9eb7a23a60b4a9fc4eae40346d

    • SSDEEP

      6144:ebGJWQdLX/Wi6fR9a5DhZ2FQPnUGSBhjA636Zi2Jyn9Ybt5KXpgmLwSVxJsVxSjf:6GJW2bOi6fRmZ2OPnUThjA636Zi2Jynd

    Score
    3/10
    execution
    behavioral24behavioral25

    • Target

      locales/en-US.pak

    • Size

      338KB

    • MD5

      5e3813e616a101e4a169b05f40879a62

    • SHA1

      615e4d94f69625dda81dfaec7f14e9ee320a2884

    • SHA256

      4d207c5c202c19c4daca3fddb2ae4f747f943a8faf86a947eef580e2f2aee687

    • SHA512

      764a271a9cfb674cce41ee7aed0ad75f640ce869efd3c865d1b2d046c9638f4e8d9863a386eba098f5dcedd20ea98bad8bca158b68eb4bdd606d683f31227594

    • SSDEEP

      6144:xiLqIY2MuZYLMMP9ecGmM8faYdY4K55TiSbn8vMwS:xiLqIp34MM+mM0Y55eSKMwS

    Score
    3/10
    discovery
    behavioral26behavioral27

    • Target

      locales/uk.pak

    • Size

      688KB

    • MD5

      e4c4e3700469704b936460ca1a90fcc0

    • SHA1

      e809990fc07a1d39fe623046382699e648e343c0

    • SHA256

      29af2abc75a35bb9e3f9bc6e2904228ba651ea4e0ce8e9c7a2d7e272374b9ebb

    • SHA512

      68e33f471c5bf2d4ed9cb00ace3e094ef102a5f1566a6e2c8a3007ef7fbd8a24c36eb36b08745f3608e70940444e9fc7a36fabe1a9945d1f00b4f3f28c7bdaf6

    • SSDEEP

      12288:FkzOqMnty/KiZswU1nbx05kB3IjUUmEg5KuoLNiXElqnOyh:muGN35EEK

    Score
    3/10
    execution
    behavioral28behavioral29

    • Target

      resources.pak

    • Size

      5.0MB

    • MD5

      31c7d4b11ad95dfe539dd098e0fab736

    • SHA1

      5418682d939ce8485ecc9125b872c14ffec662c2

    • SHA256

      a251019eb08f1e695e935d224544bda37c5ae092ba68a89fa1fe3bd19bde4f5c

    • SHA512

      f868a4afa4e0d5c561873d2a728e267f98da2df3fb90966e5736d496b6a24e71769a02b0346b27b7dcce11cbe07248e309f50a89977dc8e5bbc06d6cc31bf738

    • SSDEEP

      98304:9LYsbEcnNWz49PDq2Awkmqmcph1Dd42cjrwrbHw4o0DPelwG3RC:90WcMButpphpd4jkrU4oeelrRC

    Score
    3/10
    discovery
    behavioral30behavioral31

    • Target

      resources/app.asar

    • Size

      65.3MB

    • MD5

      4f245229ceee2b823303a3c5db24b1bb

    • SHA1

      aba6e0b52edf08bd70fd0a051b1c8321de915cc6

    • SHA256

      e8165e45d402a8e63e53a19ea08e2748723aed1eac4a7b8d7c901aa22240e6e3

    • SHA512

      4b05407ff831450b06ee97462e41166b50866677e91db315b1745e5214c14331e2b998968ac5c664801070fc85588241677f85f16b921917cc128ef26cae5aa8

    • SSDEEP

      196608:czsSrubKylBcEK1u/gNGp/GIpKcYU+x1gsBrpBVb/zC7322CNk/gNk5soeSRdBig:quFwEKPksSLqHBFBd/utCZIRjF5+bm

    Score
    3/10
    discovery
    behavioral32

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Modify Authentication Process

1
T1556

Privilege Escalation

Defense Evasion

Modify Authentication Process

1
T1556

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Modify Authentication Process

1
T1556

Steal Web Session Cookie

1
T1539

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks

static1

Score
3/10

behavioral1

discovery
Score
7/10

behavioral2

credential_accessdiscoveryspywarestealer
Score
8/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
3/10

behavioral6

discovery
Score
3/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

discovery
Score
3/10

behavioral11

Score
7/10

behavioral12

credential_accessdiscoveryspywarestealer
Score
8/10

behavioral13

discovery
Score
3/10

behavioral14

discovery
Score
3/10

behavioral15

Score
1/10

behavioral16

hexoncredential_accessdiscoveryspywarestealer
Score
10/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
1/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

execution
Score
3/10

behavioral25

execution
Score
3/10

behavioral26

discovery
Score
3/10

behavioral27

Score
3/10

behavioral28

execution
Score
3/10

behavioral29

execution
Score
3/10

behavioral30

discovery
Score
3/10

behavioral31

Score
3/10

behavioral32

discovery
Score
3/10