a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1

General

Target

a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe
Size

78KB
MD5

28af51a35d70018df036bd9e2671d459
SHA1

db708249b254953514155377c61b322cb21886e8
SHA256

a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1
SHA512

82a3151d1d25825b89136aa72479f2d399ff583f19d97a278c8f9a26599408b3e961e39b1d856d7b0b6facb8a35607f4245920097b92533cb327fb91deb61f76
SSDEEP

1536:ZRWtHY6M3xXT0XRhyRjVf3znOJTv3lcUK/+dWzCP7oYTcSQteY9/31Ek:ZRWtHYn3xSyRxvY3md+dWWZyeY9/r

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2756	tmp6345.tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe
2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\ShFusRes = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\big5.exe\""	tmp6345.tmp.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp6345.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe
Token: SeDebugPrivilege	2756	tmp6345.tmp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2772	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	30
PID 2888 wrote to memory of 2772	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	30
PID 2888 wrote to memory of 2772	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	30
PID 2888 wrote to memory of 2772	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	30
PID 2772 wrote to memory of 2784	2772	vbc.exe	32
PID 2772 wrote to memory of 2784	2772	vbc.exe	32
PID 2772 wrote to memory of 2784	2772	vbc.exe	32
PID 2772 wrote to memory of 2784	2772	vbc.exe	32
PID 2888 wrote to memory of 2756	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	33
PID 2888 wrote to memory of 2756	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	33
PID 2888 wrote to memory of 2756	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	33
PID 2888 wrote to memory of 2756	2888	a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe	33

C:\Users\Admin\AppData\Local\Temp\a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe
"C:\Users\Admin\AppData\Local\Temp\a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\xp-qfbze.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES6568.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc6567.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2784
- C:\Users\Admin\AppData\Local\Temp\tmp6345.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp6345.tmp.exe" C:\Users\Admin\AppData\Local\Temp\a5fcbd78a8ba8bc10583bb3f993ee3ec743e786773d2800a6f8cd6e871de6bb1.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES6568.tmp

Filesize
1KB

MD5
b0e752ba9aad1fb97b411e6a2a4109b4

SHA1
ca32604245aa6f7bb510a2341a0f17d2f31dcc56

SHA256
dcba843a9e6a79d0980c6206f3fe888594880b1166d1b88bb0bf6697104cd0e3

SHA512
d14821ec0224c9d11a23c2c2b7b69bfe2db35aa847c719eae691e60d183a7219a24277ca4207080cac446e8cf8b2c06a1a11c858fb7d12f775999ff99dd77e59

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6345.tmp.exe

Filesize
78KB

MD5
bbb0bde96131b0b130817af0454fd319

SHA1
ecc6d2caf4ea544607d9c5832ac179cb4ff1e59e

SHA256
f87bd736188952d93dd98722b723561f7c313d256cb85b67e0f0eecfb1ffdf0b

SHA512
89e691f90147cc69b58b0fe2316eab92b21399bccdf90a31bc408137c6db29d6adc9fb157f131c835495879a193d15eeacf8ca2f10eab36c35a764c84fed94f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc6567.tmp

Filesize
660B

MD5
04fb770b82a989de921231e194f37032

SHA1
873095d7c6882fa041b831dd7f0ed5113859add0

SHA256
c2b82299c768148c0e12eecffcd6d114f008f4c44027fbd0a9bd4ce1cac99eb3

SHA512
d6d0dec198313ae45225be082f45b3ccaa114d5b9cbfccaf585893cd432db85a54c7c335dd5cb57a1e8223d43a50737e421c3f0ae139c624ce88c31ee71938c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\xp-qfbze.0.vb

Filesize
15KB

MD5
2d97c2074be512098e1fe8de536fd177

SHA1
8fba852161a44308482696f231b40d88821b2cf5

SHA256
ef333814c30af5a163563cfb51ab3114c6c35145bda052e39dc4134d317f98a1

SHA512
e6a9e7a6ac0ae91e4a1267325358df8b3c242b3dd447ae7fe20798eb4ba46c0744d5f46286f676337ea5d060efcb037c4cfa8577a7b27bc39fb50d00e5f78e31

Download Submit
C:\Users\Admin\AppData\Local\Temp\xp-qfbze.cmdline

Filesize
266B

MD5
0f10a9efad2f6b3bb338eee296f6b738

SHA1
9e148fcede04f13df9c9928b49dde03de925a042

SHA256
0c40f614561e3617da71b985f9e37cf1d59960d75eb51d65be68f3b48f9ee0d1

SHA512
1aac5bf0ccd1b7bb622ff7fcc8ac3ce48656fedaaa7a65abb94c9c0888b8900380fd270498e2c0ddb9a4a41043f179d6c9ec2d5f80faddc7c82d8fac6ad1bffa

Download Submit
C:\Users\Admin\AppData\Local\Temp\zCom.resources

Filesize
62KB

MD5
4f0e8cf79edb6cd381474b21cabfdf4a

SHA1
7018c96b4c5dab7957d4bcdc82c1e7bb3a4f80c4

SHA256
e54a257fa391065c120f55841de8c11116ea0e601d90fe1a35dcd340c5dd9cd5

SHA512
2451a59d09464e30d0df822d9322dbecb83faa92c5a5b71b7b9db62330c40cc7570d66235f137290074a3c4a9f3d8b3447067ed135f1bb60ea9e18d0df39a107

Download Submit
memory/2772-9-0x0000000073F00000-0x00000000744AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-18-0x0000000073F00000-0x00000000744AB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-0-0x0000000073F01000-0x0000000073F02000-memory.dmp

Filesize
4KB

Download
memory/2888-1-0x0000000073F00000-0x00000000744AB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-2-0x0000000073F00000-0x00000000744AB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-24-0x0000000073F00000-0x00000000744AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads