agenttesla | Fake_SeroXen(Quasar copy)[.]rar

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General

Target

Fake_SeroXen(Quasar copy).rar
Size

2.6MB
MD5

2ae40d6e26d5a386ec530c5beb95015f
SHA1

5d6091fab6bddf89151a3bd0c9f61c1a731ed97c
SHA256

d52278972bb392dfb22415237167a304394d3a8f176834bc75eacc8a9b9121d7
SHA512

6050fdbfc642a897196f385ceb1a3ea770039b773d38b8b0d540371edea45e9a668469a96821ebe448f623c4add3ef03bdb6fb4f4ebb42e7165159da164abc5c
SSDEEP

49152:hdvN5UxiuofBt1QWpZ8q+LxKoTcQIOKTDPWE68QhPjKtbz7cAb:DvkInfRpZBzQzKHnsNmbzz

Score

10^/10

agenttesla quasar

Malware Config

Extracted

Family

quasar

Attributes

reconnect_delay
5000

Signatures

AgentTesla payload 1 IoCs

resource	yara_rule
static1/unpack001/Fake_SeroXen(Quasar copy)/Guna.UI2.dll	family_agenttesla

Agenttesla family
agenttesla
Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
static1/unpack001/Fake_SeroXen(Quasar copy)/client.bin	family_quasar

Unsigned PE 7 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Fake_SeroXen(Quasar copy)/Guna.UI2.dll
unpack001/Fake_SeroXen(Quasar copy)/Mono.Cecil.dll
unpack001/Fake_SeroXen(Quasar copy)/Mono.Nat.dll
unpack001/Fake_SeroXen(Quasar copy)/Octokit.dll
unpack001/Fake_SeroXen(Quasar copy)/SeroXen.exe
unpack001/Fake_SeroXen(Quasar copy)/Vestris.ResourceLib.dll
unpack001/Fake_SeroXen(Quasar copy)/client.bin

Files

Fake_SeroXen(Quasar copy).rar
.rar
Fake_SeroXen(Quasar copy)/Guna.UI2.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

mscoree

_CorDllMain

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Mono.Cecil.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

c:\Users\Max\Desktop\lib\cecil-master\obj\net_4_0_Release\Mono.Cecil.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 275KB - Virtual size: 275KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 824B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Mono.Nat.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

mscoree

_CorDllMain

Sections

.text
Size: 37KB - Virtual size: 37KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Octokit.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

Octokit.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Octokit.xml
.xml
Fake_SeroXen(Quasar copy)/SeroXen.exe
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 3.7MB - Virtual size: 3.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 113KB - Virtual size: 112KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Siticone.Desktop.UI.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

3a:93:0b:19:8f:29:72:9a:49:b0:8b:f3:6d:f8:17:ae
Certificate

Issuer

CN=Siticone Root CA

Not Before

05/02/2020, 06:42

Not After

22/10/2030, 17:00

Subject

CN=Siticone Technology

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

b1:71:29:25:46:e9:2d:e2:55:d6:f1:cb:f7:85:05:22:d0:ea:41:50
Signer

Actual PE Digest

b1:71:29:25:46:e9:2d:e2:55:d6:f1:cb:f7:85:05:22:d0:ea:41:50

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

Siticone.Desktop.UI.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 4.0MB - Virtual size: 4.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/Vestris.ResourceLib.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

mscoree

_CorDllMain

Sections

.text
Size: 74KB - Virtual size: 73KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 1000B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Fake_SeroXen(Quasar copy)/client.bin
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 289KB - Virtual size: 288KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 275KB - Virtual size: 275KB

.rsrc Size: 1024B - Virtual size: 824B

.reloc Size: 512B - Virtual size: 12B

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 37KB - Virtual size: 37KB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 1.3MB - Virtual size: 1.3MB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 3.7MB - Virtual size: 3.7MB

.rsrc Size: 113KB - Virtual size: 112KB

.reloc Size: 512B - Virtual size: 12B

dae02f32a21e03ce65412f6e56942daa

Code Sign

3a:93:0b:19:8f:29:72:9a:49:b0:8b:f3:6d:f8:17:aeCertificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

b1:71:29:25:46:e9:2d:e2:55:d6:f1:cb:f7:85:05:22:d0:ea:41:50Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 4.0MB - Virtual size: 4.0MB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

.text
Size: 1.9MB - Virtual size: 1.9MB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 275KB - Virtual size: 275KB

.rsrc
Size: 1024B - Virtual size: 824B

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 37KB - Virtual size: 37KB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 1.3MB - Virtual size: 1.3MB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 3.7MB - Virtual size: 3.7MB

.rsrc
Size: 113KB - Virtual size: 112KB

.reloc
Size: 512B - Virtual size: 12B

3a:93:0b:19:8f:29:72:9a:49:b0:8b:f3:6d:f8:17:ae
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

b1:71:29:25:46:e9:2d:e2:55:d6:f1:cb:f7:85:05:22:d0:ea:41:50
Signer

.text
Size: 4.0MB - Virtual size: 4.0MB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 74KB - Virtual size: 73KB

.rsrc
Size: 1024B - Virtual size: 1000B

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 289KB - Virtual size: 288KB

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 512B - Virtual size: 12B