9837727bf67f4a49655b5f2230fa7dad235b025c9af377e559df6fab0f4ff36a

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2023, 14:26

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General

Target
file.exe
Size 2.5MB
Sample230614-rrttpaaa84
SHA256 9837727bf67f4a49655b5f2230fa7dad235b025c9af377e559df6fab0f4ff36a
MD5 fc964391b20b12dcba52a6f5910adb8e
SHA1 9ca210487d82ccd81afb5e419b219a7e724db397
SHA512 0cc5234f8cc1bba33a7cb82f750bcb2e50fce7aed38ad2d968e244d7ac678085ffa5717c071e1ba98b96605c8b940b2c038331ed29ee0d47a37e51bad531972a
SSDEEP 49152:3jzJVxwtN9oNSzWmDjfs4DI0gAF9xvCw/snQfbHCM1I68ZLQua0k:3JVk3DT5g2UQzHXcZX0
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2100	ftgcigrbt.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	file.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	file.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2236	2100	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2100	ftgcigrbt.exe
2100	ftgcigrbt.exe
2100	ftgcigrbt.exe
2100	ftgcigrbt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 1476	1124	file.exe	83
PID 1124 wrote to memory of 1476	1124	file.exe	83
PID 1124 wrote to memory of 1476	1124	file.exe	83
PID 1476 wrote to memory of 2100	1476	cmd.exe	85
PID 1476 wrote to memory of 2100	1476	cmd.exe	85
PID 1476 wrote to memory of 2100	1476	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /d /c bisckflrw.bat 1302597954
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftgcigrbt.exe
    ftgcigrbt.exe lwjltgdrd.dat 1302597954
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:2100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 1284
      4⤵
      Program crash
      PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2100 -ip 2100
1⤵
PID:3264

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

bisckflrw.bat

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bisckflrw.bat
Size 134B
SHA256 601d48a8d09539f04de091fc0c0cd8a877724c51fcda2ef4ad632ad3dc976e10
MD5 365648458f97d8753406abb2e8a8b486
SHA1 86c438f87ea2b61afce453ab2ee7b57a9e9c926b
SHA512 3f3af27f5665538d68e9b8cccc9d44a698c89fe766a84579731d146133b20b1c85161d96c58f07ff3770bdb78d06b3e3c06494937364908cf5bf6915c93e7ad1
MD5 SHA1 SHA512

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ekxpyklqa.dat

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ekxpyklqa.dat
Size 1B
SHA256 08f271887ce94707da822d5263bae19d5519cb3614e0daedc4c7ce5dab7473f1
MD5 69691c7bdcc3ce6d5d8a1361f22d04ac
SHA1 c63ae6dd4fc9f9dda66970e827d13f7c73fe841c
SHA512 253405e03b91441a6dd354a9b72e040068b1bfe10e83eb1a64a086c05525d8ccae2bf09130c624af50d55c3522a4fbb7c18cfc8dd843e5f4801d9ad2b5164b12
MD5 SHA1 SHA512

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ekxpyklqa.dat.1

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ekxpyklqa.dat.1
Size 3B
SHA256 39561f8af034137905f14ca7fd5a2c891bc12982f3f8ef2271e75e93433ffa90
MD5 158b365b9eedcfaf539f5dedfd82ee97
SHA1 529f5d61ac99f60a8e473368eff1b32095a3e2bf
SHA512 a1b231c2e6af432ee7df82e00d568819e12149af707d4c4fdd018b38cc4f9761062c5b7e497bd1b67e466b89e391520b88bf13f18c8b9ff646d82df740c05c09
MD5 SHA1 SHA512

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ekxpyklqa.dat.2

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ekxpyklqa.dat.2
Size 33B
SHA256 4ebc21177ee9907f71a1641a0482603ced98e9d43389cac0ffb0b59f7343eeba
MD5 500ba63e2664798939744b8a8c9be982
SHA1 54743a77e4186cb327b803efb1ef5b3d4ac163ce
SHA512 9992b70de5867e2a00aff4f79c37ba71e827cbb104c192ebd4a553f91ae06a5b235f34e65d9d1145591c147e9e6726146cb92171945aa67b8f3294116a223fe7
MD5 SHA1 SHA512

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ekxpyklqa.dat.3

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ekxpyklqa.dat.3
Size 5.2MB
SHA256 088a5d04f2f6d6820bf1a6a390d9c0e00f88896c932848f0c97912b861479bb9
MD5 a452946137958e0cee844310f9e9fa7c
SHA1 8cf21ae4d1d764154048a02fb49412ef94094485
SHA512 ef3759e134c9b0eaaf300a57d335131faa91337497f572ef7eb1058e498a071d1741a6e0947ca9e95fe92b1ca163814ce6d1d706ad5ab010d47d18038b26beaa
SSDEEP 49152:WFlKjoqMGbkf8XfH2cvoJ7JdCrM5faRYZs9rri9/F0U2cRP8JF9zdP+T1E6gpPyV:WFlJqM48QunJ7JkA5faRO/06EnRyI
MD5 SHA1 SHA512 SSDEEP

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ftgcigrbt.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftgcigrbt.exe
Size 5.2MB
SHA256 9c5898b1b354b139794f10594e84e94e991971a54d179b2e9f746319ffac56aa
MD5 812d99a3d89b8de1b866ac960031e3df
SHA1 6817df1da376e8f6e68fd1ad06d78f02406b6e19
SHA512 85f72df2e679da3f337fc162ce3023d7d078c4433b49d3f4a16946fb0d2fdbadf5c736ff76e47bcdf920d5d90e05bf7f66ec9ca9fbe3f1d620cf33c046d857e7
SSDEEP 49152:eFlKjoqMGbkf8XfH2cvoJ7JdCrM5faRYZs9rri9/F0U2cRP8JF9zdP+T1E6gpPyV:eFlJqM48QunJ7JkA5faRO/06EnRyI
MD5 SHA1 SHA512 SSDEEP

Submit Download

ftgcigrbt.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftgcigrbt.exe
Size 5.2MB
SHA256 9c5898b1b354b139794f10594e84e94e991971a54d179b2e9f746319ffac56aa
MD5 812d99a3d89b8de1b866ac960031e3df
SHA1 6817df1da376e8f6e68fd1ad06d78f02406b6e19
SHA512 85f72df2e679da3f337fc162ce3023d7d078c4433b49d3f4a16946fb0d2fdbadf5c736ff76e47bcdf920d5d90e05bf7f66ec9ca9fbe3f1d620cf33c046d857e7
SSDEEP 49152:eFlKjoqMGbkf8XfH2cvoJ7JdCrM5faRYZs9rri9/F0U2cRP8JF9zdP+T1E6gpPyV:eFlJqM48QunJ7JkA5faRO/06EnRyI
MD5 SHA1 SHA512 SSDEEP

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lwjltgdrd.dat

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwjltgdrd.dat
Size 922KB
SHA256 93f1d745bca487d83005de10d83893673e8c726cd264935c53fb6ea50bf6afe4
MD5 eb2c63d780e1f1637216ad2024232574
SHA1 f370b506a79015c93fdf902afefbf3b59c295e70
SHA512 de14d579c004fd6c53b5e24dc28af3885cfe91ad1e2877eba0865ac9f4ea8348f00660f2ef981ae81c3d084155160218eb1acc86a2fd442a37a8ce52aaab7631
SSDEEP 24576:k6qlpuSyZ5tnRN2KpDd8nYyC/fc0nnU35a7c7:suSkTphVnUJsc7
MD5 SHA1 SHA512 SSDEEP

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memory/2100-156-0x000000003D900000-0x000000003D901000-memory.dmp

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memory/2100-158-0x0000000034600000-0x0000000034601000-memory.dmp

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memory/2100-159-0x000000002DB00000-0x000000002DB01000-memory.dmp

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memory/2100-157-0x0000000017300000-0x0000000017301000-memory.dmp

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memory/2100-160-0x0000000007200000-0x0000000007201000-memory.dmp

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memory/2100-161-0x0000000035900000-0x0000000035901000-memory.dmp

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