asyncrat

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General

Target
a5238e60cbe814a8021050ddeb4c9569eea12cf8379d689e0cd84bb83a9b8266
Size 53.5MB
Sample240713-rbbceawala
SHA256 a5238e60cbe814a8021050ddeb4c9569eea12cf8379d689e0cd84bb83a9b8266
MD5 aefaebe48f578958c832f359d62406c1
SHA1 da6313c09ddbc2bb7ec5e0acc8a0c9d49d5d0051
SHA512 e1cc0b6b2a19c0c511ff22a777a1b8db8296bca2797be32e837cab7ee4763104968de84f0e89649bbc0ae79b0812e3970712a3ea50a7f1a5b98e254b49f4f5e5
SSDEEP 1572864:pudEgIEMQXW+iffRUBPRD1peCaz5JuId9JWMr4bJz:phEMQX7iffRSR53W/l9JW2O1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

2.56.245.243:7777

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Targets

- Target
  a5238e60cbe814a8021050ddeb4c9569eea12cf8379d689e0cd84bb83a9b8266
- Size 53.5MB
- SHA256 a5238e60cbe814a8021050ddeb4c9569eea12cf8379d689e0cd84bb83a9b8266
- MD5 aefaebe48f578958c832f359d62406c1
- SHA1 da6313c09ddbc2bb7ec5e0acc8a0c9d49d5d0051
- SHA512 e1cc0b6b2a19c0c511ff22a777a1b8db8296bca2797be32e837cab7ee4763104968de84f0e89649bbc0ae79b0812e3970712a3ea50a7f1a5b98e254b49f4f5e5
- SSDEEP 1572864:pudEgIEMQXW+iffRUBPRD1peCaz5JuId9JWMr4bJz:phEMQX7iffRSR53W/l9JW2O1
- MD5 SHA1 SHA512 SSDEEP
Score

10^/10

discovery asyncrat default execution persistence rat spyware stealer
- AsyncRat
  AsyncRAT is designed to remotely monitor and control other computers written in C#.
  rat asyncrat
- Async RAT payload
  rat
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
  Run Powershell and hide display window.
  execution
- 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.
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory
behavioral1 behavioral2
- Target
  $PLUGINSDIR/SpiderBanner.dll
- Size 9KB
- SHA256 996a259e53ca18b89ec36d038c40148957c978c0fd600a268497d4c92f882a93
- MD5 17309e33b596ba3a5693b4d3e85cf8d7
- SHA1 7d361836cf53df42021c7f2b148aec9458818c01
- SHA512 1abac3ce4f2d5e4a635162e16cf9125e059ba1539f70086c2d71cd00d41a6e2a54d468e6f37792e55a822d7082fb388b8dfecc79b59226bbb047b7d28d44d298
- SSDEEP 192:5lkE3uqRI1y7/xcfK4PRef6gQzJyY1rpKlVrw:5lkMBI1y7UKcef6XzJrpKY
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral3 behavioral4
- Target
  $PLUGINSDIR/StdUtils.dll
- Size 101KB
- SHA256 72d38ef115e71fc73dc5978987c583fc8c6b50ff12e4a5d30649a4d164a8b6ae
- MD5 33b4e69e7835e18b9437623367dd1787
- SHA1 53afa03edaf931abdc2d828e5a2c89ad573d926c
- SHA512 ca890e785d1a0a7e0b4a748416fba417826ae66b46e600f407d4e795b444612a8b830f579f2cf5b6e051bea800604f34f8801cc3daf05c8d29ad05bcda454a77
- SSDEEP 1536:Ayy+wx2YAlWrU5OX9crt5c4DBqiC7hk333kbQk:ry+wojIwgNcr1a7WH0b
- MD5 SHA1 SHA512 SSDEEP
Score

3^/10
behavioral5 behavioral6
- Target
  $PLUGINSDIR/System.dll
- Size 11KB
- SHA256 a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
- MD5 75ed96254fbf894e42058062b4b4f0d1
- SHA1 996503f1383b49021eb3427bc28d13b5bbd11977
- SHA512 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4
- SSDEEP 192:X24sihno0bW+l97H4GB7QDs91kMtwtobTr4u+QHbazMNHT7dmNIEr:m8vJl97JeoxtN/r3z7YV
- MD5 SHA1 SHA512 SSDEEP
Score

3^/10
behavioral7 behavioral8
- Target
  LICENSES.chromium.html
- Size 4.5MB
- SHA256 03f1d245e6a2facca9edbdaad108169e0765dd9101875bc2d123797994b9e80f
- MD5 d4a79b5d46f0931b9eb7125fd40baff0
- SHA1 3a38fb263dde2251b9fe157b5fddec7acb07c53e
- SHA512 17cf94805f11d499ff12d8e42cb262ceecbeb265f56338e0837d291f6a7ed7f8135a025dbe99fdb2e2bb299f2267bed9365976ea51269aafd4c3220cffef9339
- SSDEEP 24576:thgBBmnLiLArZ62BrcrnKHq/kUkBAwi9QxruE:rYBmLAehN6KK+xV
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral10 behavioral9
- Target
  d3dcompiler_47.dll
- Size 4.3MB
- SHA256 44422e6936dc72b7ac5ed16bb8bcae164b7554513e52efb66a3e942cec328a47
- MD5 7641e39b7da4077084d2afe7c31032e0
- SHA1 2256644f69435ff2fee76deb04d918083960d1eb
- SHA512 8010e1cb17fa18bbf72d8344e1d63ded7cef7be6e7c13434fa6d8e22ce1d58a4d426959bdcb031502d4b145e29cb111af929fcbc66001111fbc6d7a19e8800a5
- SSDEEP 49152:aYlc/220PPiMLKam+VMrLi21f4i3jn5ZO3XUDmOZQwVd2uQpN3WsGVUWd55i/jrs:a6KD2Mrdaix4NQnLt
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral11
- Target
  ffmpeg.dll
- Size 2.7MB
- SHA256 42a2a996ac433ac33a22776b8418a82753557093d90147b7951138b5c83924b6
- MD5 eabfc10d56cb44a86493cb2f8ca7aab2
- SHA1 09d7e87f43527333cd021329d6c2f4e8bd8ddab5
- SHA512 ee31e3539fba9e5969a9f38c428f586de2dd7630cb5d8c5e3c2c934b5881f8176b8ab6ef6397c1ce4fa6ccf3ee9615225c7afa0e0b28c6fc23974e8b96625dec
- SSDEEP 49152:YISWBURglcWlJUQSyPV3cZ8RxDZa+DmXfUStDw/JcImohiiMoFwEgy:YPnvdZoJpMoQ
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral12 behavioral13
- Target
  genp.exe
- Size 120.4MB
- SHA256 c0b7602807caee94da179e24d12ca299ec2adbcf3c875aeb0291eccefaacca16
- MD5 0d8d495fed8e72ed25596c167725b82e
- SHA1 808c2773be263ca72114836bc865ec33a67713c9
- SHA512 41a01d383171394b9bdf21eb125893795b15b14432333949ea39d882928d62cc2f16609a4184f0b252b04ed7fc707b30b5a745ea478f1db675a1e2e7c9e044ab
- SSDEEP 1572864:y1f0+Sva7Hdp1Nhn+aCdrvdYrZ/7/lbg8udR8SnuSE49z:Pasulbg8yTnbEOz
- MD5 SHA1 SHA512 SSDEEP
Score

10^/10

asyncrat default execution persistence rat spyware stealer
- AsyncRat
  AsyncRAT is designed to remotely monitor and control other computers written in C#.
  rat asyncrat
- Async RAT payload
  rat
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
  Run Powershell and hide display window.
  execution
- 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.
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory
behavioral14 behavioral15
- Target
  libEGL.dll
- Size 438KB
- SHA256 f2a841b6ef320f226965c7cb01fbc4709fc31425e490a3edfa20147ce3656c85
- MD5 660a9ae1282e6205fc0a51e64470eb5b
- SHA1 f91a9c9559f51a8f33a552f0145ed9e706909de8
- SHA512 20bed2bed042033e3d8b077f9d66bce67922aaec180cc3777f20560219226b7efc73932bb87445afda4e3877472ddcd307215d23954cd082051437e5f2224263
- SSDEEP 6144:79h+56bG/eyllh9g1Kajo9wEVzZJAWpf4IBL75+Hjr:79Jbwla1KoAwqf4I4v
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral16 behavioral17
- Target
  libGLESv2.dll
- Size 7.3MB
- SHA256 a81729fd6ee2d64dfc47501a1d53794cdeee5c1daa3751f7554aea2503686d10
- MD5 bc45db0195aa369cc3c572e4e9eefc7e
- SHA1 b880ca4933656be52f027028af5ef8a3b7e07e97
- SHA512 dd8c39947e7d767fbdccf90c5b3eaedf3937b43c55200d2199107333b63ac09e5356c286618874fac841e1357dd927e0c70b5066c1feeedd8cc6c0fba605ee5f
- SSDEEP 98304:txhV5ahd7dNgHB1g468F4p9+7ULjSLy+W:tDVEhd7dcFE9+kSLx
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral18 behavioral19
- Target
  resources/app.asar
- Size 191KB
- SHA256 23c067c9f5c8382496cf4705e138d219a4e5fff2d7b656a71ad8deb7f51a9e6a
- MD5 ce32140dc21905f9e2978b94822e3ddb
- SHA1 80f9d9b6470c23cd1fb1a6e9311ef586881c4e45
- SHA512 cacaa0f7704d3777a3da5dbde1911aee39fc80b257a27bb16c3b6d0d5b8dfd4958a31e75caa3c115bc4a6aaff68deb70700cbe5ed4b9de03e0a6236102267ebd
- SSDEEP 3072:1O65N88FdZxYj+EoRwupCjQbNg0s5Lyii+zvF4DbqCKabQjqxtt7WSf:wqU+EoO8e0o+BYvF4DbqCKab9xttKSf
- MD5 SHA1 SHA512 SSDEEP
Score

3^/10

execution
behavioral20 behavioral21
- Target
  resources/elevate.exe
- Size 105KB
- SHA256 9b1fbf0c11c520ae714af8aa9af12cfd48503eedecd7398d8992ee94d1b4dc37
- MD5 792b92c8ad13c46f27c7ced0810694df
- SHA1 d8d449b92de20a57df722df46435ba4553ecc802
- SHA512 6c247254dc18ed81213a978cce2e321d6692848c64307097d2c43432a42f4f4f6d3cf22fb92610dfa8b7b16a5f1d94e9017cf64f88f2d08e79c0fe71a9121e40
- SSDEEP 3072:1bLnrwQoRDtdMMgSXiFJWcIgUVCfRjV/GrWl:1PrwRhte1XsE1l
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral22 behavioral23
- Target
  swiftshader/libEGL.dll
- Size 460KB
- SHA256 bd1bc00a5c29726fb39645041fc6c8295256d90c7f739ebeaa8b6c382a4db189
- MD5 acd46d81bb4f34912c255a8d01953635
- SHA1 25969cc9e588e174b854566778f283f067c3c0c6
- SHA512 83692654ada422391b428953b2cec67048a171bbef4c59158f34607a762feac8a233b52ceaa528306cf103d9830ee38897afa996389e086d3778f290555a059b
- SSDEEP 6144:9ljnvKkgWLOf4qw66is0YtuoCjUnPt5WpbOvcbufBnVjC4mz4sky:nnzgWLOQqD6iATYbObfYvky
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral24 behavioral25
- Target
  swiftshader/libGLESv2.dll
- Size 3.1MB
- SHA256 e9473ba82f6d8742ab74e67484886291aa69037db72e0ae256b19581de0b772e
- MD5 8090f82a02c6850cc7bd2b481a7533e0
- SHA1 54a0b66d76c1b60e45e83ba4627299d0b2aae84a
- SHA512 b2e3c57926860a7954ca6e426f5f2fa080cf6ccb5c4edd77f59744f240f597aa9613f46294e8b344db76b46fe78777b5016828b8ab2fc274ca107f3af7abd878
- SSDEEP 49152:FFE2SqB1Ip0Ak1DWFZ1zyQF+sANuFQ+3ELK/QdYLBYXLkk9/kBOwfoUBYXD5vWqC:4QEZB/SK/QK5PXgw5O1
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral26 behavioral27
- Target
  vk_swiftshader.dll
- Size 4.3MB
- SHA256 be1e1dd3897dc9a997fdc5b3216f9af24c20fc678963f7486b0a6dae8900c274
- MD5 df2f469b761a706fba0b50149660f7cf
- SHA1 2f9d8cb92b6e321e24a5437a1f77745a3507e7be
- SHA512 827e979f573f5cbbe6dd3c6bbe4414ab0d292005856b651b157f150a8d5605c3e77f76944dc0158ae9c632bdc31c243b1e9a467f03d3d3ddb08e95ff5b2e1347
- SSDEEP 49152:nR4+5d8q8C/l80az6722j5V7IqD0o/1aZ/MMN5xSvEftz4VbHX5C+cn4br4nhXsH:dDTvEF89HPoptTgY+XB
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral28 behavioral29
- Target
  vulkan-1.dll
- Size 715KB
- SHA256 37ee8858cada6db0e511d083ba0729282b004b7e239966521300955ad8b1b18a
- MD5 67ebd2114a9c3a1b2ce2635f21e100e8
- SHA1 15a8315b28dca9d7b5c1f604882050714f130718
- SHA512 6578d098b657ba4b28da60f338e033f5622e2fa9473d1833af85a44b314c1d662fcf12120dc466c7c19fcd5901b012f1f8ae7c9ce65ff8155ecd68714f25e102
- SSDEEP 12288:QDSRRxZS8ZkDVQ0FQNNTlSdBHxEXdgzXosoIjspf:QDSZZSe2Q0FOTleadgLP2f
- MD5 SHA1 SHA512 SSDEEP
Score

1^/10
behavioral30 behavioral31
- Target
  $PLUGINSDIR/nsExec.dll
- Size 6KB
- SHA256 8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6
- MD5 3d366250fcf8b755fce575c75f8c79e4
- SHA1 2ebac7df78154738d41aac8e27d7a0e482845c57
- SHA512 67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094
- SSDEEP 96:cjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNG3m+s:9bogRtJzTlNR8qD85uGgmkNP
- MD5 SHA1 SHA512 SSDEEP
Score

3^/10
behavioral32

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Tasks

Sharing

General

Malware Config

Extracted

Targets

Async RAT payload

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Adds Run key to start application

Checks installed software on the system

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Drops file in System32 directory

AsyncRat

Async RAT payload

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks

static1

behavioral1

behavioral2

behavioral3

behavioral4

behavioral5

behavioral6

behavioral7

behavioral8

behavioral9

behavioral10

behavioral11

behavioral12

behavioral13

behavioral14

behavioral15

behavioral16

behavioral17

behavioral18

behavioral19

behavioral20

behavioral21

behavioral22

behavioral23

behavioral24

behavioral25

behavioral26

behavioral27

behavioral28

behavioral29

behavioral30

behavioral31

behavioral32