arkei | 5452a78fe1884276da97e6bc8e1d7a605110511e6cc344e30576691f009692bb

Analysis

max time kernel
160s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20/05/2022, 03:39

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General

Target
SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
Size 508KB
Sample220520-d7z4ragbd6
SHA256 5452a78fe1884276da97e6bc8e1d7a605110511e6cc344e30576691f009692bb
MD5 123e62ed1d1297c8c4f7d9f2a263cd62
SHA1 fdbf7d571ba02228dc7bfc41516fb0dec9460d18
SHA512 00c0b8540a5e6a7c1e21203355aac834f3897f3c3a5191f2521ec6d761330ed347f57242596abe0db523ac686592dd6a950880ddcad1c7ab8c25e467b5e8eab6
MD5 SHA1 SHA512

Score

10^/10

arkei spyware stealer

Malware Config

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
Downloads MZ/PE file

Loads dropped DLL 3 IoCs

pid	Process
1208	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
1208	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
1208	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2960	1208	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83
PID 900 wrote to memory of 1208	900	SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe	83

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Save.a.28026.exe"
  2⤵
  - Loads dropped DLL
  PID:1208
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 1120
    3⤵
    - Program crash
    PID:2960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1208 -ip 1208
1⤵
PID:2908

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 133KB
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
SSDEEP 3072:7Gyzk/x2Wp53pUzPoNpj/kVghp1qt/dXDyp4D2JJJvPhrSeTuk:6yQ2Wp53iO/kVghp12/dXDyyD2JJJvPR
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 1.2MB
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
SSDEEP 24576:Sb5zzlswYNYLVJAwfpeYQ1Dw/fEE8DhSJVIVfRyAkgO6S/V/jbHpls4MSRSMxkoo:4zW5ygDwnEZIYkjgWjblMSRSMqH
MD5 SHA1 SHA512 SSDEEP

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sqlite3.dll

Path C:\ProgramData\sqlite3.dll
Size 630KB
SHA256 16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
MD5 e477a96c8f2b18d6b5c27bde49c990bf
SHA1 e980c9bf41330d1e5bd04556db4646a0210f7409
SHA512 335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
SSDEEP 12288:i0zrcH2F3OfwjtWvuFEmhx0Cj37670jwX+E7tFKm0qTYh:iJUOfwh8u9hx0D70NE7tFTYh
MD5 SHA1 SHA512 SSDEEP

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memory/900-131-0x00000000050F0000-0x000000000518C000-memory.dmp

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memory/900-132-0x0000000005740000-0x0000000005CE4000-memory.dmp

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memory/900-133-0x0000000008650000-0x00000000086E2000-memory.dmp

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memory/900-134-0x00000000056F0000-0x00000000056FA000-memory.dmp

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memory/900-135-0x0000000011300000-0x0000000011322000-memory.dmp

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memory/900-130-0x00000000006A0000-0x0000000000722000-memory.dmp

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memory/1208-140-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/1208-139-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/1208-137-0x0000000000400000-0x000000000041C000-memory.dmp

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