44f36dc1c320aa66475542842ee04f9e8e22841071c7ae0b25563bd2c3b78d5d

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-05-2024 02:50

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General

Target

DarkRATBuilder.exe
Size

35.2MB
MD5

ab30bdd94d86e5546b02d5bdb62f238b
SHA1

03b20cc376db4af83c74e8f51eb83aaa6a26a904
SHA256

44f36dc1c320aa66475542842ee04f9e8e22841071c7ae0b25563bd2c3b78d5d
SHA512

18876c581903e95f45cf8d59fc6a2de865d074a2a9e641c5ce242413b093e50a77fcd37e3d95adb37de2c17242732df27b9c7656423491f72d4e1d4f2f6ee21f
SSDEEP

786432:lRaNrV2IXxHOueDcZdDPbp1m7Uwai+lkWppvlqKtKN:lR0rV5uuFp1cDai+2WfIKtK

Score

7^/10

upx

Malware Config

Signatures

Loads dropped DLL 21 IoCs

Processes:

DarkRATBuilder.exe

pid	process
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe
2672	DarkRATBuilder.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\_MEI11322\python310.dll	upx
behavioral1/memory/2672-79-0x000007FEF6260000-0x000007FEF66C6000-memory.dmp	upx
behavioral1/memory/2672-96-0x000007FEF6260000-0x000007FEF66C6000-memory.dmp	upx

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

DarkRATBuilder.exe

description	pid	process	target process
PID 1132 wrote to memory of 2672	1132	DarkRATBuilder.exe	DarkRATBuilder.exe
PID 1132 wrote to memory of 2672	1132	DarkRATBuilder.exe	DarkRATBuilder.exe
PID 1132 wrote to memory of 2672	1132	DarkRATBuilder.exe	DarkRATBuilder.exe

C:\Users\Admin\AppData\Local\Temp\DarkRATBuilder.exe
"C:\Users\Admin\AppData\Local\Temp\DarkRATBuilder.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\DarkRATBuilder.exe
  "C:\Users\Admin\AppData\Local\Temp\DarkRATBuilder.exe"
  2⤵
  - Loads dropped DLL
  PID:2672

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI11322\VCRUNTIME140.dll

Filesize
95KB

MD5
f34eb034aa4a9735218686590cba2e8b

SHA1
2bc20acdcb201676b77a66fa7ec6b53fa2644713

SHA256
9d2b40f0395cc5d1b4d5ea17b84970c29971d448c37104676db577586d4ad1b1

SHA512
d27d5e65e8206bd7923cf2a3c4384fec0fc59e8bc29e25f8c03d039f3741c01d1a8c82979d7b88c10b209db31fbbec23909e976b3ee593dc33481f0050a445af

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-file-l1-2-0.dll

Filesize
4KB

MD5
cb3e0dd38c444938ce1c189aadd29a3f

SHA1
45b985ccd1d30c67c757580d4e9abe6ca7be4dd7

SHA256
b2d983883afd758913a7db54222a2db4bfeb1051b0c0f92e8faae93c0bc90fc4

SHA512
cde637e676819a05cfe6f757bcb6a1aca72bd7d4422e7cedfbf9d8ba42b47eac7868a821fce93e6d0f1de20672a8de7362f9dba0066db812c74e060134fc293e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-path-l1-1-0.dll

Filesize
3KB

MD5
2cd77f6e2fa6a502e352369426eae1c1

SHA1
abb54114f3677944af582afb6ea1f4a7785537c8

SHA256
e39ca111d81e6e5d90cf13fa0aee525d8a2740b84d2c5cd378dd69e4f79f8b0f

SHA512
47d47a49b8f89f64bd0d4bda344456784e8b0721f9ba32ce3b88e6dd5bec06bfb781dc44495ac17b4c50dfe679e1d18594fa91ccdfa26bed055a2c4a5c7c2906

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-timezone-l1-1-0.dll

Filesize
3KB

MD5
a84f802749ae5a0aa522f203ece20b7f

SHA1
3c631ce4107b2ffc9a4a06c16d41d7d0ea0a9b2f

SHA256
e4d28023eca5bd147ac645048b18bd7272735da10c30c2dbc83cd1c96703d869

SHA512
52b68a300ae56eb8a3b3f811cc7368afe5d4f1e8ee37b6fdae0878978952041bd5467eaaaec23aab12c1735ed3afd8134b2171b633ee1dae3b159e99d765a71d

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-conio-l1-1-0.dll

Filesize
12KB

MD5
21ab8a6f559d1e49c8ffa3cdaf037839

SHA1
87f2edace67ebe04ba869ba77c6f3014d9cb60c0

SHA256
30b677b95de5fcbaa2ae67088822a5feabdb63a53101cc44de83067018b457c8

SHA512
6f117397ee46519a5cf29d3c8a72503861a78a83ccbc56bd4447ab2f4693857147c35292c87cb5ba5efadde97bce3735aedb0275fcabea1006c1621945a44498

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-convert-l1-1-0.dll

Filesize
15KB

MD5
f5d4ef8a0c33cbf321dd51abafd5ffb2

SHA1
c85b87aa33f3fcee76facc1d0fec65f1cc5f1b55

SHA256
053e6f664d1aebe7fd120bf89056f2612b7667e1f71df0dddb504e04c58a508a

SHA512
9d85e5c320699c079df98695641f24d9baada5514435ae9b69c28ad3c3b5c29129cd46d0f8f2398fc94ade30777ed44ca5f75f6e78eb86d64ceb32c71046479c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-environment-l1-1-0.dll

Filesize
11KB

MD5
f5f31dc3b928073274bcdf7b4d4136f9

SHA1
07624699fd428b5e60a5ffdafe3ad1b820aa2b8d

SHA256
5cde06aaddd28e0bb3afe756215d6ae5f2eb20b00413a6a1d2095d81493c5ddd

SHA512
9458453d9530f6652f3580e988ed0f8320268a2a1a4d4a017a00935f6133fc3e8f91e8bbba07b1f628eba1a3822e4a3c3a8b72c2861950e1ede9521dd04868b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-filesystem-l1-1-0.dll

Filesize
13KB

MD5
861a2fd3afb4557ba49a6d60a02c39bf

SHA1
03622632d5e810b87b806ddfc0ed6ea3d2171b96

SHA256
c1a072b49acb82640104aada665ff948415cc57dfcbc495d4d85b1f18d84a1a3

SHA512
ae20bb93d7661d47048042a3a21d95f0c1b20918f170fee77cd7de2b9367a3f819b39e45cb6c58689603f1670cf3c46cdf6453162f3d88871c794df13460f374

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-heap-l1-1-0.dll

Filesize
11KB

MD5
156da44de8586202cd7badda883b5994

SHA1
de58f32e2172d31a55df26f0d9a0c5ac9880efdd

SHA256
6e0460ea48738b50c8628038368e4e4b425fb6aa5de76f7fe06f2473fabc0e9e

SHA512
a80a316db9fd3f6907e28771bd39c00244f510096eab3daf617c65962bb223c728505a40dc2c3f651cc49df5d7bfa6f660ea1f9889aeb2bcf9b93a2eb6c0503e

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-locale-l1-1-0.dll

Filesize
11KB

MD5
10c18ee8eb974e9f6382917ad3cd7d11

SHA1
3308cd7d9d29e42e137fd348b96545c206ea7096

SHA256
3a292b3ae218086edd2d136fcc9eb65e788caa6933c864908a07f004fecd9972

SHA512
a18769ce5ef8e0da4b9bf997d9c8800e9d715c54f603cac6534cadc0ade3f9c70a0e9fc2e607d1dfd6d7326f9fb4f519466cd0953591494d0376d1624d77f1de

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-math-l1-1-0.dll

Filesize
20KB

MD5
fd374a7f3079a4f7d96b4c8a1e71b1a3

SHA1
3f3c768239d26cf8c6f83af96131e7b8e85ed017

SHA256
f7117aa5df8fbfed9f625cbe11cd64fdac1220099484b3ae534107d02a99058d

SHA512
3f7d9d632e434ed01588c4eea69483197040588f09fdf0a9acb902ea59664ec2a0257723ab61fbe56545d14462be475919da8f072f5e1e720569cbb3a776110c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-process-l1-1-0.dll

Filesize
12KB

MD5
9600008630390e2209199e7791185075

SHA1
7e85b6c55a2d17c0d9ffc96649a92f3e73d6757c

SHA256
0e16041aa9cff135af254e79d85b5f3944bf21e9448bc07f058894eb2013f724

SHA512
8690cde896e5731074c4a703ed0a26fe5fc136a13e57656c3a92ca5a6915ec741d587258e02e60cb4b1ccafd24e110c248641c06f8d839c0c1e235b0318491b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-runtime-l1-1-0.dll

Filesize
15KB

MD5
1b923d7b425ee35cc865715e8ff2b920

SHA1
0302fe5cd576c9e28f1e9939ac04ac6ad89e371e

SHA256
fd40b4d21e907f8c168504bba248ca7eed4a84537ceec8a9903112e531b6a406

SHA512
62571b373b969889d07be3fc26146d93fed2955d6e9b336e4fc8f8759db98a8ec4154b6df5244c3b37cd3bfd7f153b2c6be7799845a02e0446c41a6898f82f31

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-stdio-l1-1-0.dll

Filesize
17KB

MD5
d263b7ce85efdc007c40aabca5acb255

SHA1
b7fac5089b3990cddc2435138e89da2d5d515032

SHA256
37dfd6cd14f191e97e5f1674422e79febfcae062b4a56959f76ff63803e58a55

SHA512
6bc594fcb1ad5149f27c86674e78bae447e6d3f2e494e2749eaeb15af28a212dad075ec441541b490774770e77377e798a3dced94c1e9b9cfdc4f5c95bf936f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-string-l1-1-0.dll

Filesize
17KB

MD5
1a3292019af01d7a6ed8bc52686840e6

SHA1
e1684c73ae12cd341250d544afcc539856c9bb43

SHA256
e01b24d0fe72ae8d2c76b287d1286741940b84808e4bf11514402a0a6d2706f9

SHA512
941c238c96de015d511bf691e878592ff8c71556ce95b3fba268bf9dc6a2e2ecde3c02b4dff66d3eeaf3b177624b193c42691c692e293982126ef70a10caf48b

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-crt-time-l1-1-0.dll

Filesize
13KB

MD5
1bf2af4deb96801edfde04a763ea4028

SHA1
f6a9a0a603b34d212620f8b513b48039e8576f47

SHA256
e4fd646a54d9a21c52c1480e5ae36bb519a7e2237a026725570776d61a43b5a1

SHA512
42fe94de60a8eb5f3b401047316440a4f36e3184f1cb9e22f750b37627ca2a6199fb55cb950b6e5cfebbe413554128723b17bc421301768ddf9636ad3c9d07d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\base_library.zip

Filesize
859KB

MD5
c4989bceb9e7e83078812c9532baeea7

SHA1
aafb66ebdb5edc327d7cb6632eb80742be1ad2eb

SHA256
a0f5c7f0bac1ea9dc86d60d20f903cc42cff3f21737426d69d47909fc28b6dcd

SHA512
fb6d431d0f2c8543af8df242337797f981d108755712ec6c134d451aa777d377df085b4046970cc5ac0991922ddf1f37445a51be1a63ef46b0d80841222fb671

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\python310.dll

Filesize
1.4MB

MD5
4a6afa2200b1918c413d511c5a3c041c

SHA1
39ca3c2b669adac07d4a5eb1b3b79256cfe0c3b3

SHA256
bec187f608507b57cf0475971ba646b8ab42288af8fdcf78bce25f1d8c84b1da

SHA512
dbffb06ffff0542200344ea9863a44a6f1e1b783379e53df18580e697e8204d3911e091deb32a9c94b5599cdd54301b705b74e1f51104151cf13b89d57280a20

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI11322\ucrtbase.dll

Filesize
971KB

MD5
bd8b198c3210b885fe516500306a4fcf

SHA1
28762cb66003587be1a59c2668d2300fce300c2d

SHA256
ce2621719f1358508c2c33bcc1380d78a737ca20cd18c0ac89f38e1be788d9a2

SHA512
c32b6c083d3a7da01085718e5685e9a04034be91251c065794ceef1dfaaf6573fdd845cbc84e926ab3f510d295649cb6e497564fbe52cc79c053357c645c11a5

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-file-l2-1-0.dll

Filesize
2KB

MD5
4a18beda5038c5203993191431b98d62

SHA1
facba10698a89a42c0e419bac056366e809dedc0

SHA256
3144bccc1385efc1ff204442a5aecc0a990776341a268fad15aa605449fca04a

SHA512
fd4a1963babe134202c5b9c97b8a83c0dc1c7e58f04a5cb12f6ccf7ae6ac41f13303fb3d01052e2b670805a7e2d21c193ee888e98e68054dd52b9bdc636a7597

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-localization-l1-2-0.dll

Filesize
4KB

MD5
3018f5b28a9e26395b7933ebcfd6f40c

SHA1
ea38f03430f1a54e9b37e9694eabc7487b6e7201

SHA256
0c62b8ab1e5f30d4a9eadcd412677e0ab5e4e9304f0870a4ee562f08d09ccc7e

SHA512
f9a81f4565d083f30049ee8e4c4da996ba86c7c20e58d3dcd102eb41ab58c6d94941545ea2ee3aa538d352847efdd84376144ff852bdef4ea3c54dab4e5ced47

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI11322\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
4KB

MD5
004f7f67994de33959d6480ef4d4f515

SHA1
76e83db625d504d1feec5dec918552f9ec51c4c3

SHA256
053a83b3f8ac76232952bdb8fb5c5067f06ba48f82b474829c25326adbd26361

SHA512
d187950683c79b1dffe4432fb476071a203cb14d7987377f71538b81fd36077f181fb7d64e9e4e30099f239764e6cbb501b65c095cd4532bc0b2ab9fbd7755a3

Download Submit
memory/2672-79-0x000007FEF6260000-0x000007FEF66C6000-memory.dmp

Filesize
4.4MB

Download
memory/2672-96-0x000007FEF6260000-0x000007FEF66C6000-memory.dmp

Filesize
4.4MB

Download